{
    "model": {
        "rank": 4209,
        "code": "thing-q170258",
        "model_id": "vr.tr.feldspar",
        "name": "feldspar",
        "purpose": "Enable an agent to recognise feldspar-bearing material, assess its mineral identity and condition, and judge suitability for a proposed use.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.MAT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q170258/",
        "tier": 2,
        "score": 77,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "Barium feldspars",
                "celsian",
                "ferrisanidine",
                "hyalophane",
                "buddingtonite",
                "antiperthite",
                "stronalsite",
                "hexacelsian",
                "orthoclase",
                "perthite",
                "sunstone",
                "dmisteinbergite",
                "alkali feldspar",
                "filatovite",
                "potassium feldspar",
                "kokchetavite",
                "reedmergnerite",
                "slawsonite",
                "svyatoslavite",
                "stöfflerite",
                "moonstone",
                "plagioclase",
                "rubicline",
                "banalsite",
                "natronorthoclase",
                "mesoperthite"
            ],
            "aliasCount": 26,
            "merged": 26,
            "knownIn": 77,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": "vr.tr.feldspar",
            "source": {
                "dataset": "wikidata",
                "item": "Q170258",
                "url": "https://www.wikidata.org/wiki/Q170258",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T19:43:03Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 23.5,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087b1-100d-7561-9427-b70dcfa9dca8\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: feldspar\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 695 things:\n# Batch 004: 1001 registe",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 60.1,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087b1-101b-7141-addc-72a541dd842e\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: feldspar\nRegistry id: vr.tr.feldspar\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContex"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q170258",
                "registryId": "vr.tr.feldspar",
                "name": "feldspar",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.MAT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q170258/",
            "model": {
                "registry_id": "vr.tr.feldspar",
                "name": "feldspar",
                "purpose": "Enable an agent to recognise feldspar-bearing material, assess its mineral identity and condition, and judge suitability for a proposed use.",
                "definition": "Feldspar is a group of rock-forming framework aluminosilicate minerals whose principal compositional series extend between potassium, sodium and calcium end members, represented by KAlSi3O8, NaAlSi3O8 and CaAl2Si2O8.",
                "scope_statement": "This model owns feldspar as a mineral-group concept and the identification, composition, texture, alteration, and use-relevant condition of feldspar specimens or material lots, while distinguishing mineral identity from commercial grade.",
                "in_scope": [
                    "Feldspar-group identity and distinctions among alkali feldspar, plagioclase, and unresolved feldspar material",
                    "Mineral composition, compositional variation, and evidence supporting identification",
                    "Crystal structure, intergrowths, grain texture, and physical identification observations",
                    "Weathering, alteration, inclusions, and accompanying minerals",
                    "Commercial feldspar grade, processing suitability, and handling constraints tied to measured material properties"
                ],
                "out_of_scope": [
                    "Complete classification and geological history of host rocks",
                    "Independent models of individual feldspar species or varieties",
                    "Mine design, mineral rights, and deposit economics",
                    "Finished ceramic bodies, glass products, and their manufacturing specifications",
                    "Complete models of accompanying quartz, mica, clay, or other minerals"
                ],
                "distinguishing_features": [
                    "Test whether mineralogical and chemical evidence supports a feldspar identity rather than relying on colour or a supplier's trade name.",
                    "Use observed cleavage, hardness, and crystal habit to distinguish candidate feldspar from quartz, then resolve ambiguous grains with analytical evidence.",
                    "Distinguish alkali feldspar from plagioclase using composition together with appropriate crystallographic or optical evidence; record unresolved cases explicitly.",
                    "Check whether a nominal feldspar specimen is a single mineral grain, an intergrowth, an altered grain, or a mixed commercial concentrate.",
                    "Distinguish feldspar from visually similar feldspathoids or alteration products through phase identification rather than appearance alone."
                ],
                "characteristics": [
                    {
                        "name": "Identity resolution",
                        "kind": "category",
                        "unit_or_values": "feldspar group only | alkali feldspar | plagioclase | identified species | unresolved",
                        "why_it_matters": "Prevents a broad group name from implying a specific mineral composition or structure."
                    },
                    {
                        "name": "Evidence-bearing sample relationship",
                        "kind": "relation",
                        "unit_or_values": "specimen or lot linked to sampled grains, analytical subsamples, and identification records",
                        "why_it_matters": "Shows whether an identification applies to one grain or represents the material being assessed."
                    },
                    {
                        "name": "Feldspar endmember composition",
                        "kind": "measurement",
                        "unit_or_values": "Or-Ab-An molar proportions where applicable, with analytical basis and uncertainty",
                        "why_it_matters": "Supports compositional classification without confusing mineral chemistry with bulk-lot chemistry."
                    },
                    {
                        "name": "Bulk oxide composition",
                        "kind": "measurement",
                        "unit_or_values": "mass % of reported oxides, including SiO2, Al2O3, K2O, Na2O, CaO, and relevant impurities; reporting basis stated",
                        "why_it_matters": "Supports evaluation against glass or ceramic feedstock requirements."
                    },
                    {
                        "name": "Mineral phase proportions",
                        "kind": "measurement",
                        "unit_or_values": "mass % or volume % feldspar phases and accompanying minerals, with method and detection limits",
                        "why_it_matters": "Separates feldspar abundance from chemical composition and exposes mixed-material limitations."
                    },
                    {
                        "name": "Crystal and intergrowth character",
                        "kind": "category",
                        "unit_or_values": "identified structural form, twinning, zoning, exsolution texture, or unresolved; evidence recorded",
                        "why_it_matters": "Helps interpret mineral identity, within-grain variability, and limits of bulk measurements."
                    },
                    {
                        "name": "Alteration condition",
                        "kind": "state",
                        "unit_or_values": "unaltered within observation limits | partly altered | extensively altered | unassessed; products and extent recorded",
                        "why_it_matters": "Changes how confidently the original mineral can be identified and whether material remains suitable for use."
                    },
                    {
                        "name": "Particle size and liberation",
                        "kind": "measurement",
                        "unit_or_values": "particle-size distribution in µm or mm; liberation proportion with stated size fraction and method",
                        "why_it_matters": "Informs separation, milling, sampling, and dust-control decisions."
                    },
                    {
                        "name": "Application test response",
                        "kind": "measurement",
                        "unit_or_values": "fired colour, shrinkage, softening or melting behaviour under a specified formulation and temperature-time schedule",
                        "why_it_matters": "Avoids treating all feldspar grades as having one universal processing response."
                    }
                ],
                "affordances": [
                    "Select identification tests that distinguish feldspar phases from accompanying or alteration minerals.",
                    "Classify a specimen or lot to the level supported by its analytical evidence.",
                    "Compare measured phase composition and bulk chemistry with an intended glass or ceramic feedstock specification.",
                    "Assess whether further sampling, sorting, separation, or milling is needed before use.",
                    "Flag handling decisions that require material-specific dust, crystalline-silica, or safety-document evidence."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "feldspar-identity-and-boundaries",
                        "name": "Feldspar identity and boundaries",
                        "description": "Establishes what the feldspar designation refers to and how precisely it is supported.",
                        "rationale": "The registry entry names a mineral group, while observations and commercial labels may refer to a species, grain, or mixed lot.",
                        "layers": [
                            {
                                "id": "mineral-identification",
                                "name": "Mineral identification",
                                "description": "Connects a feldspar identification to observations and diagnostic analyses.",
                                "findings": [
                                    {
                                        "id": "supported-identification-level",
                                        "name": "Supported identification level",
                                        "description": "Record the narrowest feldspar identity justified by evidence, including competing identifications.",
                                        "questions": [
                                            {
                                                "text": "Does the available evidence establish feldspar only, alkali feldspar, plagioclase, or a particular species?",
                                                "kind": "definition",
                                                "id": "supported-identification-level-q01"
                                            },
                                            {
                                                "text": "Which observations or analyses distinguish the material from quartz, feldspathoids, and alteration minerals?",
                                                "kind": "measurement",
                                                "id": "supported-identification-level-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "specimen-and-lot-boundary",
                                "name": "Specimen and lot boundary",
                                "description": "Separates the mineral concept from the physical material to which an assessment applies.",
                                "findings": [
                                    {
                                        "id": "assessed-material-unit",
                                        "name": "Assessed material unit",
                                        "description": "Identify whether the assessment concerns a grain, specimen, rock constituent, concentrate, or commercial powder.",
                                        "questions": [
                                            {
                                                "text": "What physical unit is being called feldspar, and which accompanying material is included in that unit?",
                                                "kind": "boundary",
                                                "id": "assessed-material-unit-q01"
                                            },
                                            {
                                                "text": "How were the analysed grains or subsamples selected, and which specimen or lot do they represent?",
                                                "kind": "provenance",
                                                "id": "assessed-material-unit-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "composition-and-crystal-character",
                        "name": "Composition and crystal character",
                        "description": "Captures feldspar chemistry and structural features needed to interpret mineral identity.",
                        "rationale": "A feldspar label alone cannot establish endmember proportions, structural form, or chemical uniformity.",
                        "layers": [
                            {
                                "id": "mineral-and-bulk-chemistry",
                                "name": "Mineral and bulk chemistry",
                                "description": "Keeps grain-scale feldspar composition distinct from whole-material analysis.",
                                "findings": [
                                    {
                                        "id": "composition-with-analytical-basis",
                                        "name": "Composition with analytical basis",
                                        "description": "Record measured chemistry, its sampling scale, and the assumptions behind any calculated endmember proportions.",
                                        "questions": [
                                            {
                                                "text": "What feldspar grain compositions and Or-Ab-An proportions are supported, and how were they measured or calculated?",
                                                "kind": "measurement",
                                                "id": "composition-with-analytical-basis-q01"
                                            },
                                            {
                                                "text": "Which reported chemical values describe feldspar itself, and which describe the bulk mixture?",
                                                "kind": "boundary",
                                                "id": "composition-with-analytical-basis-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "structure-and-intergrowths",
                                "name": "Structure and intergrowths",
                                "description": "Records crystallographic identity and heterogeneity within or between feldspar grains.",
                                "findings": [
                                    {
                                        "id": "resolved-crystal-character",
                                        "name": "Resolved crystal character",
                                        "description": "Attach evidence to structural assignments, twinning, zoning, and any interpreted exsolution texture.",
                                        "questions": [
                                            {
                                                "text": "Which diffraction, optical, or other observations support the assigned feldspar structural form?",
                                                "kind": "measurement",
                                                "id": "resolved-crystal-character-q01"
                                            },
                                            {
                                                "text": "Do zoning or intergrowths require separate phase or spatial measurements before a single composition can represent this material?",
                                                "kind": "action",
                                                "id": "resolved-crystal-character-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "assemblage-texture-and-alteration",
                        "name": "Assemblage, texture, and alteration",
                        "description": "Describes how feldspar occurs with other minerals and how its present condition affects assessment.",
                        "rationale": "Mixed phases, incomplete liberation, and alteration can make a nominal feldspar material behave differently from its identified grains.",
                        "layers": [
                            {
                                "id": "phase-associations-and-liberation",
                                "name": "Phase associations and liberation",
                                "description": "Records accompanying minerals and their physical association with feldspar.",
                                "findings": [
                                    {
                                        "id": "feldspar-abundance-and-separability",
                                        "name": "Feldspar abundance and separability",
                                        "description": "Establish phase proportions and whether unwanted minerals occur as separate grains, coatings, or inclusions.",
                                        "questions": [
                                            {
                                                "text": "What proportions of feldspar, quartz, mica, clay, and other detected phases occur, on what measurement basis?",
                                                "kind": "measurement",
                                                "id": "feldspar-abundance-and-separability-q01"
                                            },
                                            {
                                                "text": "At the assessed particle size, which accompanying minerals are liberated and which remain attached or enclosed?",
                                                "kind": "measurement",
                                                "id": "feldspar-abundance-and-separability-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "alteration-and-grain-integrity",
                                "name": "Alteration and grain integrity",
                                "description": "Records replacement, surface change, and damage relevant to feldspar identification or use.",
                                "findings": [
                                    {
                                        "id": "present-feldspar-condition",
                                        "name": "Present feldspar condition",
                                        "description": "Distinguish observed alteration products and fractures from assumptions based on appearance.",
                                        "questions": [
                                            {
                                                "text": "Which alteration products, coatings, or fractures are observed, and how extensive are they?",
                                                "kind": "measurement",
                                                "id": "present-feldspar-condition-q01"
                                            },
                                            {
                                                "text": "Does the observed condition require reclassification, additional testing, or exclusion from the proposed application?",
                                                "kind": "action",
                                                "id": "present-feldspar-condition-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "grade-performance-and-handling",
                        "name": "Grade, performance, and handling",
                        "description": "Connects a feldspar lot to a particular application and its material-specific handling evidence.",
                        "rationale": "Commercial suitability depends on measured grade and processing response, while handling requirements depend on the actual mixture and physical form.",
                        "layers": [
                            {
                                "id": "application-specific-grade",
                                "name": "Application-specific grade",
                                "description": "Evaluates feldspar feedstock against explicit glass, ceramic, or other application requirements.",
                                "findings": [
                                    {
                                        "id": "demonstrated-grade-suitability",
                                        "name": "Demonstrated grade suitability",
                                        "description": "Link acceptance decisions to chemical, particle-size, impurity, and application-test results.",
                                        "questions": [
                                            {
                                                "text": "Which limits on alkali balance, iron-bearing impurities, particle size, and other properties define the intended grade?",
                                                "kind": "definition",
                                                "id": "demonstrated-grade-suitability-q01"
                                            },
                                            {
                                                "text": "What tests under the intended formulation and thermal schedule demonstrate acceptable processing behaviour?",
                                                "kind": "measurement",
                                                "id": "demonstrated-grade-suitability-q02"
                                            },
                                            {
                                                "text": "Should this lot be accepted, blended, beneficiated, or held for further testing against that specification?",
                                                "kind": "action",
                                                "id": "demonstrated-grade-suitability-q03"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-identity-and-dust-evidence",
                                "name": "Material identity and dust evidence",
                                "description": "Associates supplier identity and handling information with the actual feldspar material.",
                                "findings": [
                                    {
                                        "id": "lot-specific-handling-basis",
                                        "name": "Lot-specific handling basis",
                                        "description": "Record applicable safety documentation and evidence about dust and accompanying crystalline silica without assigning one blanket classification to the mineral group.",
                                        "questions": [
                                            {
                                                "text": "Which supplier identifiers and safety documents apply to this material, grade, and jurisdiction?",
                                                "kind": "provenance",
                                                "id": "lot-specific-handling-basis-q01"
                                            },
                                            {
                                                "text": "What evidence establishes crystalline-silica content and airborne dust exposure for the proposed crushing, milling, or transfer operation?",
                                                "kind": "measurement",
                                                "id": "lot-specific-handling-basis-q02"
                                            },
                                            {
                                                "text": "Which handling controls are required by the applicable documents and operation-specific assessment?",
                                                "kind": "action",
                                                "id": "lot-specific-handling-basis-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "This description covers the mineral group; industrial feldspar products may be mixtures requiring their own composition and impurity specifications.",
                                            "Physical-property ranges are approximate group-level values; identify the constituent mineral and composition before assigning precise constants.",
                                            "Chemical registry identifiers, hazard classifications and exposure limits should be checked for the specific supplied material; none are asserted here."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of feldspar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Alkali feldspar",
                                            "Plagioclase feldspar"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of feldspar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "scheme": "International Mineralogical Association mineral nomenclature",
                                                "value_or_pattern": "Group and constituent mineral names",
                                                "note": "Feldspar denotes a mineral group rather than a single chemical substance; constituent names include orthoclase, microcline, sanidine, albite and anorthite."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of feldspar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Flux and alumina source in ceramic bodies and glazes.",
                                            "Alumina and alkali source in glass manufacture.",
                                            "Mineral filler in paints, plastics and other manufactured materials.",
                                            "Identification and classification of igneous and metamorphic rocks.",
                                            "Selected optically attractive varieties used as gemstones and ornamental materials."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of feldspar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "quantity": "Mohs hardness",
                                                "typical_range": "Approximately 6-6.5",
                                                "unit": "Mohs scale"
                                            },
                                            {
                                                "quantity": "Density",
                                                "typical_range": "Approximately 2.55-2.76, depending on composition",
                                                "unit": "g/cm³"
                                            },
                                            {
                                                "quantity": "Angle between principal cleavage planes",
                                                "typical_range": "Approximately 90",
                                                "unit": "degree"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of feldspar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Crushing, grinding and handling powders generate dust that can irritate eyes and the respiratory tract.",
                                            "Commercial feldspar may contain quartz; respirable crystalline silica contamination requires separate assessment.",
                                            "Brittleness and two prominent cleavage directions make crystals susceptible to chipping and fracture.",
                                            "Weathering and hydrothermal alteration can replace feldspar with clay minerals or other secondary minerals.",
                                            "Iron-bearing impurities and variable alkali content can cause unwanted colour or inconsistent firing behaviour in ceramics."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of feldspar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Deposit geology produces regional differences in potassium-to-sodium ratio, calcium content and associated quartz, mica and iron-bearing impurities.",
                                            "Commercial grades and purchasing specifications vary among suppliers and markets; a feldspar trade name alone does not establish composition or purity."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of feldspar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "Quartz",
                                                "difference": "Quartz is SiO2, has Mohs hardness 7 and lacks feldspar's two prominent cleavage directions."
                                            },
                                            {
                                                "name": "Feldspathoid",
                                                "difference": "Feldspathoids are distinct framework silicate minerals with lower silica content relative to comparable feldspars."
                                            },
                                            {
                                                "name": "Clay mineral",
                                                "difference": "Clay minerals commonly have sheet structures and may form through feldspar alteration; they are not feldspar varieties."
                                            },
                                            {
                                                "name": "Granite",
                                                "difference": "Granite is a rock composed of multiple minerals, commonly including feldspar and quartz; feldspar is a mineral group."
                                            },
                                            {
                                                "name": "Nepheline syenite",
                                                "difference": "Nepheline syenite is a rock containing feldspar and nepheline that can serve similar industrial functions, rather than a feldspar mineral."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of feldspar this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Which authoritative mineral nomenclature and classification references should govern feldspar species assignments and unusual compositions?",
                "Does an existing Vercy world model already own the feldspar-group concept, requiring this registry entry to link to it?",
                "Which analytical methods and uncertainty thresholds are sufficient for the intended decisions when zoning, intergrowths, or alteration complicate identification?",
                "Which application-specific feldspar grade specifications and thermal test methods should be adopted for the initial supported uses?",
                "Which commercial identifiers, safety classifications, and exposure requirements apply to the actual supplied mixtures and jurisdictions?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 16,
                "questions": 26
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "chemical substance or material",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a feldspar, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to recognise feldspar-bearing material, assess its mineral identity and condition, and judge suitability for a proposed use.",
            "characteristics": {
                "substance": "material",
                "origin": "natural",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured",
                "consumed or used up"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: Barium feldspars, celsian, ferrisanidine, hyalophane, buddingtonite, antiperthite, stronalsite, hexacelsian, orthoclase, perthite, sunstone, dmisteinbergite.",
                "26 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 77 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a feldspar, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state",
                "use it up, and then need more of it"
            ],
            "howItIsRecognised": [
                "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "Barium feldspars",
                        "celsian",
                        "ferrisanidine",
                        "hyalophane",
                        "buddingtonite",
                        "antiperthite",
                        "stronalsite",
                        "hexacelsian",
                        "orthoclase",
                        "perthite",
                        "sunstone",
                        "dmisteinbergite"
                    ]
                }
            ],
            "standing": "Described in 77 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 26 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one feldspar from another, and a feldspar from things that resemble it.",
                        "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.",
                        "layers": [
                            {
                                "id": "naming-and-identifiers",
                                "name": "Names and identifiers",
                                "description": "The names this thing goes by and the identifiers that survive translation and time.",
                                "findings": [
                                    {
                                        "id": "preferred-name-and-aliases",
                                        "name": "Preferred name, aliases and local names",
                                        "description": "Which name to use, which names mean the same thing, and which merely sound similar.",
                                        "questions": [
                                            {
                                                "id": "preferred-name-and-aliases-q01",
                                                "text": "What identifies and describes the name of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q02",
                                                "text": "Who or what asserted this about the name of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q03",
                                                "text": "What may an agent decide or do once the name of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "stable-identifiers",
                                        "name": "Stable identifiers and external keys",
                                        "description": "Identifiers that keep pointing at this kind of thing across systems and languages.",
                                        "questions": [
                                            {
                                                "id": "stable-identifiers-q01",
                                                "text": "What identifies and describes an identifier for a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q02",
                                                "text": "Who or what asserted this about an identifier for a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q03",
                                                "text": "What may an agent decide or do once an identifier for a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "classification-and-granularity",
                                "name": "Classification and granularity",
                                "description": "Where a feldspar sits among kinds, and how finely a task needs to cut it.",
                                "findings": [
                                    {
                                        "id": "kind-and-parents",
                                        "name": "Kind, parents and neighbouring kinds",
                                        "description": "The classes this thing belongs to and the ones it is next to.",
                                        "questions": [
                                            {
                                                "id": "kind-and-parents-q01",
                                                "text": "What identifies and describes the kind of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q02",
                                                "text": "Who or what asserted this about the kind of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q03",
                                                "text": "What may an agent decide or do once the kind of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "distinguishing-features",
                                        "name": "Distinguishing features",
                                        "description": "What separates a feldspar from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q02",
                                                "text": "Who or what asserted this about what distinguishes a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q03",
                                                "text": "What may an agent decide or do once what distinguishes a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "form-and-composition",
                        "name": "Form, composition and condition",
                        "description": "What a feldspar is made of, what shape and size it takes, and what state it is in.",
                        "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.",
                        "layers": [
                            {
                                "id": "form-and-dimensions",
                                "name": "Form and dimensions",
                                "description": "Shape, size, mass and the ranges these take across examples.",
                                "findings": [
                                    {
                                        "id": "measurable-dimensions",
                                        "name": "Measurable dimensions and their units",
                                        "description": "The quantities worth recording and the units they are recorded in.",
                                        "questions": [
                                            {
                                                "id": "measurable-dimensions-q01",
                                                "text": "What identifies and describes the dimensions of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q02",
                                                "text": "Who or what asserted this about the dimensions of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q03",
                                                "text": "What may an agent decide or do once the dimensions of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-and-composition",
                                "name": "Material and composition",
                                "description": "Materials, parts and how they are put together.",
                                "findings": [
                                    {
                                        "id": "parts-and-materials",
                                        "name": "Parts and materials",
                                        "description": "What a feldspar is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q02",
                                                "text": "Who or what asserted this about the composition of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q03",
                                                "text": "What may an agent decide or do once the composition of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-integrity",
                                "name": "Condition and integrity",
                                "description": "Wear, damage, health and the difference between working and broken.",
                                "findings": [
                                    {
                                        "id": "condition-assessment",
                                        "name": "Condition, damage and health",
                                        "description": "How the condition of a feldspar is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q02",
                                                "text": "Who or what asserted this about the condition of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q03",
                                                "text": "What may an agent decide or do once the condition of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "place-and-movement",
                        "name": "Place and movement",
                        "description": "Where a feldspar is, how it got there and where it may go (varies).",
                        "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.",
                        "layers": [
                            {
                                "id": "location-and-placement",
                                "name": "Location and placement",
                                "description": "Position, containment and the reference frame the position is given in.",
                                "findings": [
                                    {
                                        "id": "position-and-frame",
                                        "name": "Position, container and reference frame",
                                        "description": "Where a feldspar is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q02",
                                                "text": "Who or what asserted this about the location of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q03",
                                                "text": "What may an agent decide or do once the location of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "movement-and-transfer",
                                "name": "Movement and transfer",
                                "description": "How a feldspar is carried, installed or relocated.",
                                "findings": [
                                    {
                                        "id": "movement-events",
                                        "name": "Movement events and constraints",
                                        "description": "What counts as a movement, what records it and what limits it.",
                                        "questions": [
                                            {
                                                "id": "movement-events-q01",
                                                "text": "What identifies and describes the movement of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q02",
                                                "text": "Who or what asserted this about the movement of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q03",
                                                "text": "What may an agent decide or do once the movement of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "state-and-lifecycle",
                        "name": "State and lifecycle",
                        "description": "The states a feldspar passes through and the events that move it between them.",
                        "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.",
                        "layers": [
                            {
                                "id": "lifecycle-stages",
                                "name": "Lifecycle stages",
                                "description": "From coming into existence to ceasing to be one of these.",
                                "findings": [
                                    {
                                        "id": "stages-and-transitions",
                                        "name": "Stages and transitions",
                                        "description": "The stages worth naming and what moves a feldspar between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q02",
                                                "text": "Who or what asserted this about the lifecycle of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q03",
                                                "text": "What may an agent decide or do once the lifecycle of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "observations-and-status",
                                "name": "Observations and current status",
                                "description": "What is observed about a feldspar, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a feldspar is recorded so that it can be superseded rather than overwritten.",
                                        "questions": [
                                            {
                                                "id": "observation-record-q01",
                                                "text": "What identifies and describes an observation of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q02",
                                                "text": "Who or what asserted this about an observation of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q03",
                                                "text": "What may an agent decide or do once an observation of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use-and-operation",
                        "name": "Use and operation",
                        "description": "What can be done with a feldspar and what it takes to do it.",
                        "rationale": "An agent that can recognise a thing but not act on it has only half a model.",
                        "layers": [
                            {
                                "id": "intended-use",
                                "name": "Intended use and function",
                                "description": "What a feldspar is for, and what it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-and-purpose",
                                        "name": "Function, purpose and misuse",
                                        "description": "The function a feldspar performs and the uses that fall outside it.",
                                        "questions": [
                                            {
                                                "id": "function-and-purpose-q01",
                                                "text": "What identifies and describes the use of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q02",
                                                "text": "Who or what asserted this about the use of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q03",
                                                "text": "What may an agent decide or do once the use of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-and-procedure",
                                "name": "Handling and procedure",
                                "description": "The steps, skills and tools involved in using a feldspar.",
                                "findings": [
                                    {
                                        "id": "procedures-and-skills",
                                        "name": "Procedures, skills and required tools",
                                        "description": "What an agent needs before it can act on a feldspar at all.",
                                        "questions": [
                                            {
                                                "id": "procedures-and-skills-q01",
                                                "text": "What identifies and describes handling a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q02",
                                                "text": "Who or what asserted this about handling a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q03",
                                                "text": "What may an agent decide or do once handling a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "supply-and-consumption",
                                "name": "Supply and consumption",
                                "description": "Quantities, rates and what running out means.",
                                "findings": [
                                    {
                                        "id": "consumption-and-stock",
                                        "name": "Consumption, stock and replenishment",
                                        "description": "How much of a feldspar there is and how fast it goes.",
                                        "questions": [
                                            {
                                                "id": "consumption-and-stock-q01",
                                                "text": "What identifies and describes the supply of a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q02",
                                                "text": "Who or what asserted this about the supply of a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q03",
                                                "text": "What may an agent decide or do once the supply of a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "composition-and-identity",
                        "name": "Composition, grade and chemical identity",
                        "description": "What feldspar is made of and how pure the thing in hand is.",
                        "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.",
                        "layers": [
                            {
                                "id": "chemical-identity",
                                "name": "Chemical identity",
                                "description": "Formula, structure and the registry numbers that name it unambiguously.",
                                "findings": [
                                    {
                                        "id": "identity-record",
                                        "name": "Identity and registry numbers",
                                        "description": "What identifies this substance across suppliers and regulators.",
                                        "questions": [
                                            {
                                                "id": "identity-record-q01",
                                                "text": "What formula, structure and registry identifiers name feldspar unambiguously?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "identity-record-q02",
                                                "text": "Which related substances share a name in common use but not an identifier?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "grade-and-impurities",
                                "name": "Grade, purity and impurities",
                                "description": "The specification a batch meets and what else is in it.",
                                "findings": [
                                    {
                                        "id": "specification",
                                        "name": "Specification and assay",
                                        "description": "How purity is stated and measured, and which impurities matter.",
                                        "questions": [
                                            {
                                                "id": "specification-q01",
                                                "text": "What grades of feldspar exist, how is purity assayed, and which impurities are limited?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "specification-q02",
                                                "text": "Which use requires which grade, and what happens when a lower grade is substituted?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "properties-and-behaviour",
                        "name": "Properties and behaviour",
                        "description": "How feldspar behaves under conditions an agent can measure or change.",
                        "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.",
                        "layers": [
                            {
                                "id": "physical-constants",
                                "name": "Physical constants",
                                "description": "Values that hold for the pure substance, with their conditions.",
                                "findings": [
                                    {
                                        "id": "constants-record",
                                        "name": "Constants and conditions",
                                        "description": "The quantities worth recording and the state they apply in.",
                                        "questions": [
                                            {
                                                "id": "constants-record-q01",
                                                "text": "What are the defining physical constants of feldspar, in what units and under what conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "constants-record-q02",
                                                "text": "Which of these values change with grade or form rather than being fixed?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "stability-and-reactivity",
                                "name": "Stability and reactivity",
                                "description": "What it reacts with, degrades into, and how it is stored.",
                                "findings": [
                                    {
                                        "id": "incompatibilities",
                                        "name": "Incompatibilities and degradation",
                                        "description": "What must not meet it, and what it becomes over time.",
                                        "questions": [
                                            {
                                                "id": "incompatibilities-q01",
                                                "text": "What is feldspar incompatible with, and what does it degrade into under storage?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "incompatibilities-q02",
                                                "text": "What storage and handling does that require, and who is competent to do it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "hazard-and-regulation",
                        "name": "Hazard classification and regulation",
                        "description": "How feldspar can harm, and what the law says about holding and moving it.",
                        "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.",
                        "layers": [
                            {
                                "id": "hazard-class",
                                "name": "Hazard classification",
                                "description": "Classified hazards, exposure limits and protective measures.",
                                "findings": [
                                    {
                                        "id": "classified-hazards",
                                        "name": "Classified hazards and limits",
                                        "description": "The classification, the scheme it belongs to, and the limits set.",
                                        "questions": [
                                            {
                                                "id": "classified-hazards-q01",
                                                "text": "How is feldspar classified for hazard, under which scheme, and what exposure limits apply?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "classified-hazards-q02",
                                                "text": "What protection does handling require, and what must an agent refuse to do without it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "regulatory-identity",
                                "name": "Regulatory identity and control",
                                "description": "Registration, restriction and transport rules by jurisdiction.",
                                "findings": [
                                    {
                                        "id": "controls",
                                        "name": "Controls and jurisdiction",
                                        "description": "Where it is restricted and what the restriction attaches to.",
                                        "questions": [
                                            {
                                                "id": "controls-q01",
                                                "text": "Which registrations, restrictions or transport rules cover feldspar, and where?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "controls-q02",
                                                "text": "Does the control attach to the substance, its concentration, or its intended use?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a feldspar came from and when it held.",
                        "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.",
                        "layers": [
                            {
                                "id": "source-and-authority",
                                "name": "Source and authority",
                                "description": "Who said it, on what evidence, and how strongly.",
                                "findings": [
                                    {
                                        "id": "claim-provenance",
                                        "name": "Claim provenance and confidence",
                                        "description": "The authority behind each claim about a feldspar and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q02",
                                                "text": "Who or what asserted this about a claim about a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q03",
                                                "text": "What may an agent decide or do once a claim about a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "time-and-versions",
                                "name": "Time, versions and supersession",
                                "description": "When a claim was true, when it was learnt, and what replaced it.",
                                "findings": [
                                    {
                                        "id": "validity-and-supersession",
                                        "name": "Validity period and supersession",
                                        "description": "How an old claim about a feldspar is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a feldspar, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q02",
                                                "text": "Who or what asserted this about the validity of a claim about a feldspar, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q03",
                                                "text": "What may an agent decide or do once the validity of a claim about a feldspar is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 9,
                "layers": 20,
                "findings": 22,
                "questions": 60
            }
        }
    }
}