{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T11:07:22Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 20.9, "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: 01a0954b-a481-7a90-9243-25a02767c25b\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: magnesioferrite\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 044: 1001", "usd": 0.0, "recall": true }, "codex": { "seconds": 84.9, "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: 01a0954b-a474-7c72-9c85-a61ed360144f\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: magnesioferrite\nRegistry id: vr.tr.magnesioferrite\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:50:36+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:30+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q408603", "registryId": "vr.tr.magnesioferrite", "name": "magnesioferrite", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q408603/", "model": { "registry_id": "vr.tr.magnesioferrite", "name": "magnesioferrite", "purpose": "Enable an agent to identify magnesioferrite, assess a specimen's composition and physical state, and determine which handling or material-use decisions its evidence supports.", "definition": "Magnesioferrite is a cubic oxide mineral of the spinel group with ideal composition MgFe₂O₄, in which magnesium and ferric iron occupy the cation sites of a spinel structure.", "scope_statement": "This model owns vr.tr.magnesioferrite in PHY / PHY.MAT: the mineral species with ideal composition MgFe2O4 and spinel structure, including specimen-level composition, identification evidence, condition, and comparison with synthetic equivalents.", "in_scope": [ "Mineral identity and boundaries with neighbouring spinel species and MgFe2O4 polymorphs", "Measured composition, iron oxidation states, substitutions, and phase purity", "Crystal structure, cation site occupancy, and thermal history", "Specimen morphology and condition-dependent magnetic and physical properties", "Natural occurrence or synthetic provenance, handling evidence, and suitability for a specified use" ], "out_of_scope": [ "Magnetite, maghemite, and other ferrite species as independent materials", "Maohokite as a separate mineral species", "Host rocks, deposits, and geological events beyond their relation to a specimen", "Synthesis processes and processing equipment as independently managed systems", "Devices, catalysts, and commercial formulations containing magnesium ferrite" ], "distinguishing_features": [ "Establish Mg-bearing ferric oxide chemistry together with spinel structure; chemistry alone does not establish mineral identity. Reference: [Handbook of Mineralogy: Magnesioferrite](https://www.handbookofmineralogy.org/pdfs/magnesioferrite.pdf).", "Distinguish magnesioferrite from magnetite using quantified Mg and iron oxidation-state evidence, rather than magnetic attraction alone; the minerals form a compositional series. Reference: [Handbook of Mineralogy: Magnesioferrite](https://www.handbookofmineralogy.org/pdfs/magnesioferrite.pdf).", "Distinguish cubic magnesioferrite from orthorhombic maohokite through structural analysis, because both have ideal formula MgFe2O4. Reference: [Handbook of Mineralogy: Maohokite](https://www.handbookofmineralogy.org/pdfs/Maohokite.pdf).", "Require evidence that Mg and Fe belong to the identified spinel phase; a bulk mixture of magnesium-bearing material and iron oxide can misleadingly approach the same elemental ratio.", "Treat a supplier label of 'magnesium ferrite' as a candidate identification requiring phase and composition evidence, particularly for doped powders and multiphase products." ], "characteristics": [ { "name": "Identification status", "kind": "state", "unit_or_values": "candidate; analytically supported; disputed; unresolved", "why_it_matters": "Controls whether an agent may treat the specimen as magnesioferrite." }, { "name": "Phase-specific composition", "kind": "measurement", "unit_or_values": "Mg, Fe, and substituent concentrations in wt%; formula normalized to four oxygen atoms with assumptions recorded", "why_it_matters": "Separates end-member approximation, substitution, and contamination." }, { "name": "Iron oxidation-state partition", "kind": "measurement", "unit_or_values": "Fe2+/total Fe and Fe3+/total Fe; method and uncertainty", "why_it_matters": "Supports charge balance and discrimination from neighbouring iron-bearing spinels." }, { "name": "Crystal phase and lattice", "kind": "measurement", "unit_or_values": "identified structure and space group; lattice parameters in angstroms; measurement temperature", "why_it_matters": "Tests structural identity and detects competing phases." }, { "name": "Cation inversion parameter", "kind": "measurement", "unit_or_values": "x from 0 to 1 under the explicitly stated idealized convention (Mg1-xFex)[MgxFe2-x]O4", "why_it_matters": "Records site distribution without assuming that ideal composition fixes cation ordering." }, { "name": "Magnesioferrite phase fraction", "kind": "measurement", "unit_or_values": "wt% or vol%, with method, uncertainty, and detection limits", "why_it_matters": "Distinguishes a magnesioferrite specimen from material containing only a minor amount." }, { "name": "Particle and crystallite dimensions", "kind": "measurement", "unit_or_values": "nm or micrometres; separate particle, aggregate, and coherent-domain distributions", "why_it_matters": "Makes powder measurements and handling assessments interpretable." }, { "name": "Magnetic response", "kind": "measurement", "unit_or_values": "magnetization in A m2/kg; coercivity in A/m; temperature, field protocol, and normalization basis", "why_it_matters": "Allows evidence-based comparison of specimens and evaluation of magnetic manipulation." }, { "name": "Thermal and atmospheric history", "kind": "relation", "unit_or_values": "linked annealing, cooling, storage, and exposure records with temperature, duration, and atmosphere", "why_it_matters": "Connects observed composition and ordering to the specimen's treatment history." }, { "name": "Origin and material form", "kind": "category", "unit_or_values": "natural crystal; natural aggregate; mineral inclusion; synthetic analogue powder; ceramic; film", "why_it_matters": "Prevents transfer of measurements between materially different specimens." }, { "name": "Applicable handling evidence", "kind": "relation", "unit_or_values": "specimen or product-specific safety documentation, exposure assessment, jurisdiction, and review date", "why_it_matters": "Grounds handling decisions in the actual material and its contaminants." } ], "affordances": [ "Select complementary composition and diffraction measurements to resolve a candidate identification.", "Compare a specimen with magnesioferrite references while accounting for substitutions and accessory phases.", "Track changes after heating, milling, or atmospheric exposure through before-and-after measurements.", "Evaluate magnetic separation or collection using measured response and the identity of coexisting phases.", "Assess a characterized specimen against explicit magnetic, purity, and particle-size requirements.", "Choose handling controls from material-form and contaminant evidence." ], "agent_conduct": { "may": [ "Describe magnesioferrite, its spinel structure and occurrence from mineralogical sources.", "Record its magnetic and compositional data with stated methods." ], "must_not": [ "Confuse it with magnetite or other spinels in reports without analysis.", "Help collect specimens from protected sites, such as volcanic or burning coal areas, without permission.", "Make health or healing claims about magnetic mineral specimens." ], "requires_human": [ "Confirming a specimen's identity for sale or publication." ] }, "ethics": { "considerations": [ "Misidentification of minerals misleads buyers and corrupts research data.", "Some localities are hazardous or protected sites." ], "affected_parties": [ "Collectors and buyers", "Researchers" ] }, "owners": { "steward": "The person or collection that holds a specimen.", "master_systems": [] }, "visual_identification": [ "Black, metallic, strongly magnetic octahedral crystals or grains.", "Very similar to magnetite; told apart by chemical analysis." ], "failure_modes_and_hazards": [ "Collecting at fumaroles or burning coal dumps exposes collectors to heat and gases." ], "what_it_is_for": [ "Magnesioferrite is encountered in mineral collections and geological studies of magnesium-rich rocks altered by heat or associated with volcanic environments.", "Its composition and crystal structure help researchers interpret mineral formation and distinguish related spinel minerals.", "Synthetic magnesium ferrite materials are also studied for magnetic and catalytic behaviour, although their properties need not match those of natural specimens." ], "standards_and_regulation": [ "The mineral classification approved by the International Mineralogical Association Commission on New Minerals, Nomenclature and Classification places magnesioferrite in the spinel supergroup." ] }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q408603: magnesioferrite", "url": "https://www.wikidata.org/wiki/Q408603", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Magnesioferrite", "url": "https://en.wikipedia.org/wiki/Magnesioferrite", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "mineral-identity", "name": "Mineral identity", "description": "Establish whether the material belongs to the registered magnesioferrite concept.", "rationale": "A ferrite name, elemental ratio, or magnetic response alone cannot resolve the species.", "layers": [ { "id": "species-boundary", "name": "Species boundary", "description": "Connect the registered name to a defensible mineral identification.", "findings": [ { "id": "magnesioferrite-assignment", "name": "Magnesioferrite assignment", "description": "Require compatible composition and structure and state the nomenclature rule used.", "questions": [ { "text": "Which accepted mineral definition and compositional naming rule support assigning this specimen to magnesioferrite?", "kind": "definition", "id": "magnesioferrite-assignment-q01" }, { "text": "Does 'magnesium ferrite' identify this phase, a synthetic analogue, or a product containing it?", "kind": "boundary", "id": "magnesioferrite-assignment-q02" } ] } ] }, { "id": "competing-identifications", "name": "Competing identifications", "description": "Resolve similar spinels, polymorphs, and misleading mixtures.", "findings": [ { "id": "discriminating-evidence", "name": "Discriminating evidence", "description": "Assess whether the available analytical evidence separates plausible alternatives.", "questions": [ { "text": "Which phase-specific Mg and iron-valence measurements distinguish the specimen from Mg-bearing magnetite or other iron oxides?", "kind": "measurement", "id": "discriminating-evidence-q01" }, { "text": "Which diffraction evidence excludes maohokite and a mixture of separate magnesium and iron compounds?", "kind": "boundary", "id": "discriminating-evidence-q02" } ] } ] } ] }, { "id": "composition-and-phase-purity", "name": "Composition and phase purity", "description": "Describe the actual magnesioferrite composition and its share of the material.", "rationale": "Natural substitution and accessory phases can invalidate properties assigned from the ideal formula.", "layers": [ { "id": "formula-and-valence", "name": "Formula and valence", "description": "Record analytical chemistry with explicit normalization and oxidation-state assumptions.", "findings": [ { "id": "measured-formula", "name": "Measured formula", "description": "Separate directly measured quantities from charge-balance calculations.", "questions": [ { "text": "What formula follows from phase-specific Mg, Fe, and substituent measurements, including analytical uncertainty?", "kind": "measurement", "id": "measured-formula-q01" }, { "text": "Was Fe2+/Fe3+ measured independently or inferred from stoichiometry, and what assumptions govern that inference?", "kind": "provenance", "id": "measured-formula-q02" } ] } ] }, { "id": "heterogeneity-and-accessories", "name": "Heterogeneity and accessories", "description": "Separate substitutions within grains from additional mineral or manufactured phases.", "findings": [ { "id": "phase-resolved-purity", "name": "Phase-resolved purity", "description": "Define purity through identified phases and spatially resolved composition.", "questions": [ { "text": "What fraction is magnesioferrite, and which crystalline or amorphous accessory phases remain detectable?", "kind": "measurement", "id": "phase-resolved-purity-q01" }, { "text": "Are compositional deviations located within magnesioferrite grains, in zoning, or in inclusions and surface coatings?", "kind": "boundary", "id": "phase-resolved-purity-q02" } ] } ] } ] }, { "id": "structure-and-transformation", "name": "Structure and transformation", "description": "Record spinel structure, cation ordering, and changes under treatment.", "rationale": "Composition alone does not describe site occupancy or establish persistence of the identified phase.", "layers": [ { "id": "lattice-and-site-occupancy", "name": "Lattice and site occupancy", "description": "Link structural measurements to specimen conditions and refinement assumptions.", "findings": [ { "id": "resolved-spinel-state", "name": "Resolved spinel state", "description": "Represent the measured lattice and the evidence available for Mg and Fe site distribution.", "questions": [ { "text": "What diffraction refinement supports the assigned spinel structure and lattice parameters at the stated temperature?", "kind": "measurement", "id": "resolved-spinel-state-q01" }, { "text": "What method constrains Mg and Fe occupancy, and is an inversion parameter identifiable within its uncertainty?", "kind": "measurement", "id": "resolved-spinel-state-q02" } ] } ] }, { "id": "treatment-dependent-state", "name": "Treatment-dependent state", "description": "Track structural or chemical changes through thermal, atmospheric, and pressure exposure.", "findings": [ { "id": "verified-transformation-envelope", "name": "Verified transformation envelope", "description": "Distinguish observed stability from extrapolated treatment limits.", "questions": [ { "text": "What annealing, cooling, pressure, and atmosphere history preceded the current measurements?", "kind": "provenance", "id": "verified-transformation-envelope-q01" }, { "text": "Which measurements establish the onset of ordering changes, redox changes, decomposition, or a different structure?", "kind": "measurement", "id": "verified-transformation-envelope-q02" }, { "text": "After a proposed treatment, which phase and composition checks are required before retaining the magnesioferrite identification?", "kind": "action", "id": "verified-transformation-envelope-q03" } ] } ] } ] }, { "id": "specimen-properties", "name": "Specimen properties", "description": "Make physical and magnetic measurements comparable across magnesioferrite forms.", "rationale": "Bulk crystals, mixed mineral grains, and synthetic powders need distinct measurement context.", "layers": [ { "id": "morphology-and-physical-response", "name": "Morphology and physical response", "description": "Describe grain dimensions, aggregation, porosity, and supporting identification properties.", "findings": [ { "id": "physical-measurement-context", "name": "Physical measurement context", "description": "Attach measured properties to the actual specimen scale and material form.", "questions": [ { "text": "What are the particle, aggregate, and crystallite-size distributions, and how were they distinguished?", "kind": "measurement", "id": "physical-measurement-context-q01" }, { "text": "Do density, hardness, and optical observations describe magnesioferrite grains or a porous, coated, or multiphase specimen?", "kind": "boundary", "id": "physical-measurement-context-q02" } ] } ] }, { "id": "magnetic-characterization", "name": "Magnetic characterization", "description": "Record magnetic response with sufficient context to support a decision.", "findings": [ { "id": "conditioned-magnetic-response", "name": "Conditioned magnetic response", "description": "Separate the measured specimen response from an assumed universal material constant.", "questions": [ { "text": "What magnetization curve, coercivity, and remanence were measured at the stated temperature and field protocol?", "kind": "measurement", "id": "conditioned-magnetic-response-q01" }, { "text": "How were accessory magnetic phases and the magnesioferrite mass fraction accounted for?", "kind": "measurement", "id": "conditioned-magnetic-response-q02" }, { "text": "Does the measured response support the proposed separation or magnetic-material requirement?", "kind": "action", "id": "conditioned-magnetic-response-q03" } ] } ] } ] }, { "id": "origin-handling-and-use", "name": "Origin, handling, and use", "description": "Connect specimen provenance to defensible handling and use decisions.", "rationale": "Geological specimens and manufactured magnesium ferrite may carry different contaminants and documentation.", "layers": [ { "id": "specimen-lineage", "name": "Specimen lineage", "description": "Preserve origin and treatment records needed to interpret the material.", "findings": [ { "id": "natural-or-synthetic-lineage", "name": "Natural or synthetic lineage", "description": "Identify the specimen's source and distinguish observed context from inferred formation.", "questions": [ { "text": "Which locality, host association, or manufacturing lot identifies the origin of this magnesioferrite specimen?", "kind": "provenance", "id": "natural-or-synthetic-lineage-q01" }, { "text": "Which formation or processing conditions are documented, and which are inferred from mineral associations or the current structure?", "kind": "provenance", "id": "natural-or-synthetic-lineage-q02" } ] } ] }, { "id": "handling-and-acceptance", "name": "Handling and acceptance", "description": "Tie permissions for handling or use to the characterized material form.", "findings": [ { "id": "material-specific-decision", "name": "Material-specific decision", "description": "Avoid transferring identifiers, safety classifications, or performance claims between unlike materials.", "questions": [ { "text": "Which verified CAS, EC, or PubChem records apply to this material identity, and do they describe the mineral, synthetic compound, or formulation?", "kind": "boundary", "id": "material-specific-decision-q01" }, { "text": "What current documentation supports handling controls for this powder or specimen, including identified accessory contaminants?", "kind": "provenance", "id": "material-specific-decision-q02" }, { "text": "Which measured phase-purity, particle-size, and magnetic criteria must be satisfied before accepting this specimen for the proposed use?", "kind": "action", "id": "material-specific-decision-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 is recalled knowledge, without source consultation; hardness and density should be checked against an authoritative mineral reference.", "CAS identifiers, hazard classifications and exposure limits are omitted because none is confidently recalled for this precise mineral identity.", "Application claims should distinguish natural magnesioferrite from engineered magnesium ferrite powders, nanoparticles and ceramics." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of magnesioferrite 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": "Ideal chemical formula", "value_or_pattern": "MgFe₂O₄", "note": "Natural specimens may contain substituting elements; the formula describes the ideal endmember." }, { "scheme": "Hermann-Mauguin space-group notation", "value_or_pattern": "Fd-3m", "note": "Describes the usual cubic spinel structure, not a unique substance identifier." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of magnesioferrite 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": [ "Natural specimens support studies of mineral formation, oxidation conditions and spinel chemistry.", "Synthetic magnesium ferrite of the same ideal composition is studied for magnetic materials, catalysis and environmental adsorption; these applications do not establish commercial uses for the natural mineral." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of magnesioferrite 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": "5.5-6.5", "unit": "Mohs scale" }, { "quantity": "Density", "typical_range": "Approximately 4.6", "unit": "g/cm³" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of magnesioferrite 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 or grinding can generate airborne mineral dust; exposure assessment must account for particle size and associated minerals.", "Composition, cation distribution and particle size can alter magnetic properties, so synthetic magnesium ferrite specifications cannot be inferred from the mineral name alone." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of magnesioferrite 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": "Magnetite", "difference": "Magnetite has ideal formula Fe₃O₄, with ferrous iron occupying the compositional role taken by magnesium in ideal magnesioferrite." }, { "name": "Magnesiochromite", "difference": "Magnesiochromite has ideal formula MgCr₂O₄, with chromium rather than ferric iron as the principal trivalent cation." }, { "name": "Spinel", "difference": "The mineral species spinel has ideal formula MgAl₂O₄; magnesioferrite contains ferric iron in place of aluminium." }, { "name": "Synthetic magnesium ferrite", "difference": "It can share magnesioferrite's composition and structure but is manufactured; provenance and material characterization distinguish it from a natural mineral specimen." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of magnesioferrite this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which current mineral nomenclature rules resolve substituted compositions near the magnesioferrite-magnetite boundary?", "Which chemical identifiers map precisely to magnesioferrite, and which describe broader synthetic magnesium ferrite materials?", "What composition-, size-, and treatment-specific evidence constrains cation inversion and magnetic properties?", "What verified temperature, pressure, and atmosphere limits establish phase persistence, and should any reported melting value instead be treated as decomposition or transformation?", "Which authoritative safety classifications and exposure limits apply to particular magnesioferrite material forms, rather than being borrowed from unrelated iron oxides or contaminants?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 16, "questions": 29 } }