{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T11:04:37Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 18.0,
        "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: 01a09549-447e-7fa3-96df-f850b82004a8\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: luzonite\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 regist",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 76.0,
        "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: 01a09549-4485-7602-b17b-245354a8d509\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: luzonite\nRegistry id: vr.tr.luzonite\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContex"
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:55:11+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "failure_modes_and_hazards",
        "owners",
        "visual_identification"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-08T19:09:54+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q417482",
    "registryId": "vr.tr.luzonite",
    "name": "luzonite",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.MAT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q417482/",
  "model": {
    "registry_id": "vr.tr.luzonite",
    "name": "luzonite",
    "purpose": "Enable an agent to recognize luzonite, assess the identity and condition of a specimen, and select appropriate characterization or handling actions.",
    "definition": "Luzonite is a tetragonal copper arsenic sulfide mineral with ideal formula Cu3AsS4, polymorphic with orthorhombic enargite.",
    "scope_statement": "This model owns the mineral identity registered as vr.tr.luzonite in PHY / PHY.MAT, including its composition, crystal structure, specimen-scale occurrence, identification evidence, and condition-dependent action constraints.",
    "in_scope": [
      "Luzonite mineral identity and evidence supporting an identification",
      "Cu-As-Sb-S composition and variation within individual grains",
      "Crystal structure and discrimination from enargite and famatinite",
      "Luzonite grain abundance, intergrowths, and liberation within specimens",
      "Alteration, sample preparation history, and handling-relevant material state"
    ],
    "out_of_scope": [
      "Enargite and famatinite as separately modeled mineral species",
      "Whole-deposit geology, resource estimation, and mine operations",
      "Commercial copper concentrates and their contractual grades",
      "Industrial extraction, roasting, and refining processes",
      "Arsenic toxicology and jurisdiction-wide exposure regulations"
    ],
    "distinguishing_features": [
      "Require composition compatible with Cu3AsS4 together with structural evidence; chemistry alone cannot distinguish luzonite from its dimorph enargite. [Handbook of Mineralogy](https://handbookofmineralogy.org/pdfs/luzonite.pdf)",
      "Use diffraction to distinguish tetragonal luzonite from orthorhombic enargite. [Harvard Mineralogical Museum](https://tmn.fas.harvard.edu/objects/TSNB118)",
      "Measure arsenic and antimony within the identified phase when distinguishing luzonite from members toward famatinite in their compositional series. [Handbook of Mineralogy](https://handbookofmineralogy.org/pdfs/luzonite.pdf)",
      "Treat pinkish-brown metallic appearance as supporting evidence only: luzonite can resemble bornite. [Handbook of Mineralogy](https://handbookofmineralogy.org/pdfs/luzonite.pdf)"
    ],
    "characteristics": [
      {
        "name": "Phase identification confidence",
        "kind": "state",
        "unit_or_values": "suspected | provisionally identified | structurally and chemically supported | disputed",
        "why_it_matters": "Prevents a specimen label or bulk assay from being treated as a confirmed mineral identification."
      },
      {
        "name": "Grain composition",
        "kind": "measurement",
        "unit_or_values": "Cu, As, Sb, S and detected additional elements in mass percent; normalized atoms per formula unit",
        "why_it_matters": "Tests chemical compatibility and separates substitution within a grain from contamination by adjacent phases."
      },
      {
        "name": "Arsenic fraction relative to antimony",
        "kind": "measurement",
        "unit_or_values": "Atomic As/(As + Sb), dimensionless, with analytical uncertainty",
        "why_it_matters": "Supports evaluation of the luzonite-famatinite naming boundary without silently assigning intermediate compositions."
      },
      {
        "name": "Crystal structure determination",
        "kind": "category",
        "unit_or_values": "tetragonal luzonite supported | alternative structure supported | mixed or disordered | unresolved",
        "why_it_matters": "Separates polymorph identity from elemental composition."
      },
      {
        "name": "Diffraction observations",
        "kind": "measurement",
        "unit_or_values": "d-spacings and lattice parameters in angstroms; relative intensities; acquisition conditions and fit uncertainty",
        "why_it_matters": "Makes a structural identification independently reviewable."
      },
      {
        "name": "Luzonite abundance",
        "kind": "measurement",
        "unit_or_values": "mass percent, volume percent, or mapped area percent, explicitly distinguished",
        "why_it_matters": "Distinguishes a luzonite grain from a specimen containing only minor luzonite."
      },
      {
        "name": "Intergrowth and grain size",
        "kind": "measurement",
        "unit_or_values": "Grain and domain dimensions in micrometres, with named neighboring phases",
        "why_it_matters": "Determines whether an analytical spot or separated fraction represents luzonite alone."
      },
      {
        "name": "Surface and preparation condition",
        "kind": "state",
        "unit_or_values": "fresh fracture | polished | coated | tarnished | visibly altered | powdered | unknown",
        "why_it_matters": "Conditions the interpretation of optical observations, surface chemistry, and subsequent handling."
      },
      {
        "name": "Specimen provenance",
        "kind": "relation",
        "unit_or_values": "Linked locality, collection record, parent sample, preparation history, and analytical subsample",
        "why_it_matters": "Keeps mineral identification evidence attached to the actual material examined."
      }
    ],
    "affordances": [
      "Select complementary diffraction and grain-scale chemical analyses to test a luzonite identification.",
      "Map luzonite domains and distinguish their composition from neighboring or intergrown minerals.",
      "Estimate luzonite abundance while retaining the measurement basis and uncertainty.",
      "Choose a representative analytical subsample using grain size and intergrowth evidence.",
      "Flag unresolved identity, alteration, or arsenic-related handling evidence before destructive preparation.",
      "Link confirmed observations to the registered mineral without treating the entire host specimen as pure luzonite."
    ],
    "agent_conduct": {
      "may": [
        "Describe luzonite and its relation to enargite from mineralogical sources.",
        "Record specimens and assays for an authorized collection or survey."
      ],
      "must_not": [
        "Advise heating, roasting or grinding it outside controlled facilities, given its arsenic content.",
        "Advise handling it without gloves and hand washing.",
        "Overstate copper grade in ore reports."
      ],
      "requires_human": [
        "Approving processing of arsenic-bearing copper ore."
      ]
    },
    "ethics": {
      "considerations": [
        "Smelting arsenic-bearing ores has poisoned workers and nearby communities.",
        "Waste from such ores can contaminate water."
      ],
      "affected_parties": [
        "Mine and smelter workers",
        "Communities near processing",
        "Collectors"
      ]
    },
    "owners": {
      "steward": "For deposits, the mineral rights holder under the mining authority; for specimens, their holder.",
      "master_systems": [
        "Mining cadastres and mineral rights registers"
      ]
    },
    "visual_identification": [
      "Pinkish-brown to dark grey metallic masses or crystals in copper deposits.",
      "Very similar to enargite; told apart by analysis."
    ],
    "failure_modes_and_hazards": [
      "Contains arsenic, released as toxic fumes on heating.",
      "Weathering releases arsenic and acid into water."
    ],
    "what_it_is_for": [
      "Luzonite is encountered in copper-bearing hydrothermal mineral deposits, ore specimens and mineral collections.",
      "Its identification supports studies of ore formation and assessments of arsenic-bearing copper mineralization, particularly where it occurs with similar sulfide minerals."
    ],
    "standards_and_regulation": [
      "The mineral species nomenclature maintained by the International Mineralogical Association through its Commission on New Minerals, Nomenclature and Classification recognizes luzonite as a distinct mineral species."
    ]
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q417482: luzonite",
      "url": "https://www.wikidata.org/wiki/Q417482",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-de",
      "title": "Wikipedia (de): Luzonit",
      "url": "https://de.wikipedia.org/wiki/Luzonit",
      "url_status": "live",
      "checked_by": "wikidata-api sitelink",
      "what_it_supports": "general description of the item"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "mineral-identity",
        "name": "Mineral identity",
        "description": "Establish what evidence warrants calling the examined phase luzonite.",
        "rationale": "A mineral name must resolve both composition and structure, especially where polymorphs share a formula.",
        "layers": [
          {
            "id": "chemical-identity",
            "name": "Chemical identity",
            "description": "Evaluate composition at the scale of the candidate mineral phase.",
            "findings": [
              {
                "id": "phase-specific-composition",
                "name": "Phase-specific composition",
                "description": "Record measured grain chemistry separately from ideal composition and bulk specimen chemistry.",
                "questions": [
                  {
                    "text": "Is the analyzed grain chemically compatible with Cu3AsS4 after accounting for substitutions and analytical uncertainty?",
                    "kind": "measurement",
                    "id": "phase-specific-composition-q01"
                  },
                  {
                    "text": "Could adjacent phases, inclusions, or the analytical interaction volume explain departures from the expected composition?",
                    "kind": "boundary",
                    "id": "phase-specific-composition-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "polymorph-identification",
            "name": "Polymorph identification",
            "description": "Resolve luzonite versus enargite using structural observations.",
            "findings": [
              {
                "id": "structure-supported-name",
                "name": "Structure-supported name",
                "description": "Attach the mineral assignment to a documented structural test and its limitations.",
                "questions": [
                  {
                    "text": "Which diffraction observations support tetragonal luzonite rather than orthorhombic enargite?",
                    "kind": "measurement",
                    "id": "structure-supported-name-q01"
                  },
                  {
                    "text": "Does the structural measurement examine the same domain as the chemical measurement?",
                    "kind": "provenance",
                    "id": "structure-supported-name-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "composition-and-species-boundaries",
        "name": "Composition and species boundaries",
        "description": "Interpret arsenic-antimony variation without conflating neighboring species or mixed analyses.",
        "rationale": "Luzonite identification must distinguish compositional variation within a phase from crossing a mineral naming boundary.",
        "layers": [
          {
            "id": "arsenic-antimony-variation",
            "name": "Arsenic-antimony variation",
            "description": "Resolve compositional differences within and between candidate luzonite grains.",
            "findings": [
              {
                "id": "substitution-or-mixture",
                "name": "Substitution or mixture",
                "description": "Evaluate whether measured antimony belongs to the candidate phase or a separate constituent.",
                "questions": [
                  {
                    "text": "What are the As/(As + Sb) values and uncertainties across individual grains or mapped zones?",
                    "kind": "measurement",
                    "id": "substitution-or-mixture-q01"
                  },
                  {
                    "text": "Do elemental maps support within-phase variation, discrete inclusions, or unresolved mixtures?",
                    "kind": "boundary",
                    "id": "substitution-or-mixture-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "mineral-name-assignment",
            "name": "Mineral name assignment",
            "description": "Apply a documented naming rule to chemically variable material.",
            "findings": [
              {
                "id": "luzonite-famatinite-boundary",
                "name": "Luzonite-famatinite boundary",
                "description": "Keep the classification rule explicit and retain ambiguity when evidence straddles its boundary.",
                "questions": [
                  {
                    "text": "Which authoritative nomenclature rule determines whether this composition is assigned to luzonite or famatinite?",
                    "kind": "definition",
                    "id": "luzonite-famatinite-boundary-q01"
                  },
                  {
                    "text": "Does analytical uncertainty require an intermediate or unresolved designation rather than an unqualified luzonite label?",
                    "kind": "boundary",
                    "id": "luzonite-famatinite-boundary-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "texture-and-identification-scale",
        "name": "Texture and identification scale",
        "description": "Connect identification evidence to grains, intergrowth domains, and the containing specimen.",
        "rationale": "Luzonite commonly occurs intimately intergrown with enargite, making observation scale consequential. [Handbook of Mineralogy](https://handbookofmineralogy.org/pdfs/luzonite.pdf)",
        "layers": [
          {
            "id": "intergrowth-resolution",
            "name": "Intergrowth resolution",
            "description": "Assess whether measurements isolate the phase being named.",
            "findings": [
              {
                "id": "resolvable-luzonite-domains",
                "name": "Resolvable luzonite domains",
                "description": "Compare domain dimensions with the spatial resolution of the identification method.",
                "questions": [
                  {
                    "text": "What are the dimensions and spatial relationships of candidate luzonite and enargite domains?",
                    "kind": "measurement",
                    "id": "resolvable-luzonite-domains-q01"
                  },
                  {
                    "text": "Can the chosen method resolve those domains, or should the result describe an intergrowth?",
                    "kind": "action",
                    "id": "resolvable-luzonite-domains-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "supporting-optical-evidence",
            "name": "Supporting optical evidence",
            "description": "Use optical observations with preparation and orientation recorded.",
            "findings": [
              {
                "id": "optical-comparison",
                "name": "Optical comparison",
                "description": "Separate visual resemblance from phase confirmation.",
                "questions": [
                  {
                    "text": "What reflected-light color and anisotropy are observed under documented illumination, orientation, and surface preparation?",
                    "kind": "measurement",
                    "id": "optical-comparison-q01"
                  },
                  {
                    "text": "Which chemical or structural observation excludes bornite or another visually similar phase?",
                    "kind": "boundary",
                    "id": "optical-comparison-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "occurrence-and-material-state",
        "name": "Occurrence and material state",
        "description": "Relate the identified mineral to its geological setting and present specimen condition.",
        "rationale": "Context supports interpretation, while alteration and treatment can change the material actually being measured.",
        "layers": [
          {
            "id": "geological-association",
            "name": "Geological association",
            "description": "Record host and associated phases without treating locality as proof of identity.",
            "findings": [
              {
                "id": "documented-occurrence",
                "name": "Documented occurrence",
                "description": "Connect the analyzed domain to a traceable specimen and observed mineral assemblage.",
                "questions": [
                  {
                    "text": "Which collection or field record links the analyzed material to its locality and parent specimen?",
                    "kind": "provenance",
                    "id": "documented-occurrence-q01"
                  },
                  {
                    "text": "Which associated minerals and contact textures were observed directly in this specimen?",
                    "kind": "measurement",
                    "id": "documented-occurrence-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "alteration-and-treatment",
            "name": "Alteration and treatment",
            "description": "Distinguish surviving luzonite from modified surfaces or replacement products.",
            "findings": [
              {
                "id": "current-phase-integrity",
                "name": "Current phase integrity",
                "description": "Preserve evidence of alteration and preparation that limits interpretation.",
                "questions": [
                  {
                    "text": "Do surface and interior analyses identify the same phase, or reveal alteration rims and replacement products?",
                    "kind": "measurement",
                    "id": "current-phase-integrity-q01"
                  },
                  {
                    "text": "What heating, chemical cleaning, polishing, coating, or storage history could have affected the examined material?",
                    "kind": "provenance",
                    "id": "current-phase-integrity-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "sampling-and-handling-decisions",
        "name": "Sampling and handling decisions",
        "description": "Translate phase abundance, intergrowth, and arsenic-bearing composition into evidence requirements for proposed work.",
        "rationale": "An agent needs to choose informative sampling actions and identify unresolved handling constraints for the actual specimen.",
        "layers": [
          {
            "id": "representative-phase-sampling",
            "name": "Representative phase sampling",
            "description": "Plan characterization around the distribution of luzonite within the material.",
            "findings": [
              {
                "id": "analytical-fraction-quality",
                "name": "Analytical fraction quality",
                "description": "Define how much luzonite an analytical fraction contains and which contaminants remain.",
                "questions": [
                  {
                    "text": "What luzonite abundance and associated-phase content characterize the proposed analytical fraction?",
                    "kind": "measurement",
                    "id": "analytical-fraction-quality-q01"
                  },
                  {
                    "text": "Would grain targeting, mapping, or physical separation provide a more representative phase analysis?",
                    "kind": "action",
                    "id": "analytical-fraction-quality-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "arsenic-bearing-material-handling",
            "name": "Arsenic-bearing material handling",
            "description": "Require specimen- and operation-specific evidence before assigning handling conditions.",
            "findings": [
              {
                "id": "operation-specific-constraints",
                "name": "Operation-specific constraints",
                "description": "Track the proposed operation and applicable evidence without inventing a luzonite-specific hazard classification.",
                "questions": [
                  {
                    "text": "Will the proposed operation leave the specimen intact, generate powder, heat it, or chemically attack it?",
                    "kind": "action",
                    "id": "operation-specific-constraints-q01"
                  },
                  {
                    "text": "Which verified material assessment or laboratory procedure specifies controls and waste handling for this arsenic-bearing sample and operation?",
                    "kind": "provenance",
                    "id": "operation-specific-constraints-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "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 a recall-based description; no sources were consulted.",
                  "Verify numerical physical properties against an authoritative mineral reference before technical use.",
                  "Confirm specimen identity through crystallographic and chemical analysis, particularly when distinguishing luzonite from enargite or antimony-rich related material."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of luzonite 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": "Chemical formula",
                    "value_or_pattern": "Cu3AsS4",
                    "note": "Ideal composition; natural material can contain substitutions and impurities."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-identifiers-q01",
                    "text": "Which of these identifiers and schemes hold for the sense of luzonite 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": [
                  "A copper-bearing constituent of some ore deposits.",
                  "Studied to understand mineral assemblages and formation conditions in hydrothermal deposits.",
                  "Collected as a mineral specimen."
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of luzonite 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 3.5",
                    "unit": "Mohs scale"
                  },
                  {
                    "quantity": "Density",
                    "typical_range": "Approximately 4.4-4.5",
                    "unit": "g/cm³"
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-measurements-q01",
                    "text": "Which of these typical measurements hold for the sense of luzonite 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": [
                  "Arsenic-bearing dust generated by crushing or grinding requires exposure control.",
                  "Heating or smelting can release hazardous arsenic-bearing emissions.",
                  "Arsenic content can complicate processing and environmental management of copper ores."
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of luzonite 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": "enargite",
                    "difference": "Has the same ideal chemical formula but an orthorhombic crystal structure; luzonite is tetragonal."
                  },
                  {
                    "name": "famatinite",
                    "difference": "Has ideal formula Cu3SbS4, with antimony occupying the compositional role held by arsenic in luzonite."
                  },
                  {
                    "name": "chalcopyrite",
                    "difference": "Has ideal formula CuFeS2 and contains iron as an essential constituent, unlike ideal luzonite."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of luzonite this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Which current authoritative nomenclature rule and analytical tolerances should govern the luzonite-famatinite boundary?",
    "Which reference diffraction datasets and complementary methods adequately distinguish fine luzonite-enargite intergrowths or stacking disorder?",
    "What experimentally supported temperature, pressure, and compositional conditions govern luzonite stability and transformation, and how strongly do kinetics limit their interpretation?",
    "Which luzonite-specific alteration, dissolution, and exposure data support handling decisions, rather than extrapolation from other arsenic-bearing minerals?",
    "Do authoritative chemical identifiers or safety records unambiguously distinguish luzonite from enargite, synthetic Cu3AsS4, and mixed ores?"
  ],
  "statistics": {
    "bundles": 6,
    "layers": 11,
    "findings": 16,
    "questions": 26
  }
}
