{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-13T06:11:31Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 3,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T10:00:00Z",
      "ingestedAt": "2026-10-06T07:09:39+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:52:00+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q43010",
    "registryId": "vr.tr.quartz",
    "name": "quartz",
    "version": "0.2.0-wave.3",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.MAT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q43010/",
  "model": {
    "registry_id": "vr.tr.quartz",
    "name": "quartz",
    "purpose": "Let an agent explain quartz and its varieties, relay structure, properties and occurrence from mineralogical references, describe uses from electronics to gems, and distinguish quartz from other silica minerals, from glass and from quartzite.",
    "definition": "A hard, crystalline mineral of silicon dioxide, the second most abundant mineral in the continental crust, occurring as clear rock crystal and coloured varieties such as amethyst, citrine, smoky quartz, rose quartz, cat s eye and star quartz, as microcrystalline chalcedony and agate, as a constituent of sandstones such as the Burgpreppach sandstone, and as shocked quartz formed by meteorite impacts; synthetic quartz is grown for electronics, and quartz is used in glass, oscillators, abrasives and gemstones.",
    "what_it_is_for": "Gems, electronics, glass and industry.",
    "affordances": [
      "explain structure and varieties",
      "relay properties and occurrence",
      "describe uses",
      "distinguish related materials"
    ],
    "distinguishing_features": [
      "Hexagonal crystals",
      "Hardness 7",
      "Piezoelectric",
      "Many varieties"
    ],
    "appearance": "Hexagonal prismatic crystals, clear or coloured, with a glassy lustre and conchoidal fracture.",
    "visual_identification": [
      "Crystalline silicon dioxide",
      "Rock crystal, amethyst, citrine, smoky, rose, cat s eye and star quartz, shocked quartz, synthetic quartz, quartz sandstones",
      "Opal is amorphous silica; glass is non-crystalline; quartzite is a metamorphic rock of quartz"
    ],
    "physical_properties": [
      {
        "quantity": "hardness",
        "typical_range": "7",
        "unit": "Mohs",
        "note": ""
      },
      {
        "quantity": "density",
        "typical_range": "2.65",
        "unit": "g/cm^3",
        "note": ""
      },
      {
        "quantity": "formula",
        "typical_range": "SiO2",
        "unit": "formula",
        "note": ""
      },
      {
        "quantity": "crustal abundance",
        "typical_range": "about 12",
        "unit": "percent",
        "note": "by volume"
      }
    ],
    "families_and_kinds": [
      "macrocrystalline varieties such as rock crystal, amethyst, citrine, smoky and rose quartz",
      "chatoyant and asteriated varieties such as cat s eye and star quartz",
      "microcrystalline chalcedony, agate and jasper",
      "shocked quartz from impacts",
      "synthetic quartz for electronics",
      "quartz-rich rocks such as sandstones and quartzite"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "tectosilicates",
        "why": "in registry terms"
      },
      {
        "relation": "is a kind of",
        "target": "dioxosilicate minerals (silica family)",
        "why": "in registry terms"
      },
      {
        "relation": "is made of",
        "target": "silicon dioxide",
        "why": "in crystalline form"
      },
      {
        "relation": "is used in",
        "target": "crystal oscillator",
        "why": "for timing"
      }
    ],
    "identifiers": [
      {
        "scheme": "IMA",
        "value_or_pattern": "quartz",
        "note": "grandfathered species"
      },
      {
        "scheme": "Strunz",
        "value_or_pattern": "4.DA.05",
        "note": "quartz"
      }
    ],
    "standards_and_regulation": [
      "Gem trade standards and disclosure of treatments",
      "Occupational silica dust limits",
      "Electronics component standards"
    ],
    "failure_modes_and_hazards": [
      "Silicosis from dust",
      "Confusing quartz with glass or other silica minerals",
      "Undisclosed treated or synthetic gems"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Describe quartz, its varieties and uses from mineralogical sources.",
        "Identify specimens with stated confidence and methods.",
        "Warn generally about silica dust in cutting and grinding."
      ],
      "must_not": [
        "Misrepresent treated, synthetic or glass items as natural quartz gems.",
        "Advise cutting quartz or engineered stone without dust control.",
        "Encourage collecting specimens from protected sites.",
        "Present crystal healing claims as medical fact."
      ],
      "requires_human": [
        "Valuing gems for sale."
      ]
    },
    "ethics": {
      "considerations": [
        "Silicosis from quartz dust kills workers, including in stone benchtop trades.",
        "Undisclosed treatments defraud buyers."
      ],
      "affected_parties": [
        "Stoneworkers and miners",
        "Gem buyers",
        "Collectors"
      ]
    },
    "owners": {
      "steward": "The person who holds a specimen; mineral rights belong to the landowner or state.",
      "master_systems": [
        "Mineral databases"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q43010: quartz",
      "url": "https://www.wikidata.org/wiki/Q43010",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Quartz",
      "url": "https://en.wikipedia.org/wiki/Quartz",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "understand",
        "name": "Understand",
        "description": "What quartz is.",
        "rationale": "Science.",
        "layers": [
          {
            "id": "definition",
            "name": "Definition",
            "description": "Definition and structure.",
            "findings": [
              {
                "id": "definition-finding",
                "name": "Definition",
                "description": "Definition.",
                "questions": [
                  {
                    "text": "What is quartz, and how does it differ from opal, glass and quartzite?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is the question about quartz in general, a variety, a rock or a product?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "varieties",
            "name": "Varieties",
            "description": "Varieties.",
            "findings": [
              {
                "id": "varieties-finding",
                "name": "Varieties",
                "description": "Varieties.",
                "questions": [
                  {
                    "text": "What are rock crystal, amethyst, citrine, smoky, rose, cat s eye and star quartz, chalcedony and shocked quartz?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which entry fits the specific variety?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "science",
        "name": "Science",
        "description": "Properties and occurrence.",
        "rationale": "Science.",
        "layers": [
          {
            "id": "properties",
            "name": "Properties",
            "description": "Properties.",
            "findings": [
              {
                "id": "properties-finding",
                "name": "Properties",
                "description": "Properties.",
                "questions": [
                  {
                    "text": "What are the physical properties of quartz, including piezoelectricity and polymorphs?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "occurrence",
            "name": "Occurrence",
            "description": "Occurrence.",
            "findings": [
              {
                "id": "occurrence-finding",
                "name": "Occurrence",
                "description": "Occurrence.",
                "questions": [
                  {
                    "text": "Where does quartz occur, in igneous, metamorphic and sedimentary rocks such as sandstones?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which sources are cited?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "use",
        "name": "Use",
        "description": "Uses.",
        "rationale": "Application.",
        "layers": [
          {
            "id": "industry",
            "name": "Industry",
            "description": "Industry and electronics.",
            "findings": [
              {
                "id": "industry-finding",
                "name": "Industry",
                "description": "Industry.",
                "questions": [
                  {
                    "text": "How is quartz used in glass, oscillators, optics and abrasives, and how is synthetic quartz grown?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits crystal oscillator?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "gems",
            "name": "Gems",
            "description": "Gems.",
            "findings": [
              {
                "id": "gems-finding",
                "name": "Gems",
                "description": "Gems.",
                "questions": [
                  {
                    "text": "How are quartz gems cut, treated and valued?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits gemstone?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "Safety and culture.",
        "rationale": "Context.",
        "layers": [
          {
            "id": "safety",
            "name": "Safety",
            "description": "Safety.",
            "findings": [
              {
                "id": "safety-finding",
                "name": "Safety",
                "description": "Safety.",
                "questions": [
                  {
                    "text": "What are the hazards of silica dust, and how are they controlled?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits silicosis?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "culture",
            "name": "Culture",
            "description": "Culture.",
            "findings": [
              {
                "id": "culture-finding",
                "name": "Culture",
                "description": "Culture.",
                "questions": [
                  {
                    "text": "How has quartz featured in history, folklore and unproven healing claims, with claims attributed?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is the presentation evidence-based?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should amethyst and chalcedony be separate primary entries?",
    "How should mineralogical references be linked?",
    "The registry entry has merged aliases naming varieties and a local sandstone; should they be split off?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}