{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.luzonite","code":"thing-q417482","url":"https://ver.cy/models/thing/q417482/","name":"luzonite","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Luzonite is a tetragonal copper arsenic sulfide mineral with ideal formula Cu3AsS4, polymorphic with orthorhombic enargite.","purpose":"Enable an agent to recognize luzonite, assess the identity and condition of a specimen, and select appropriate characterization or handling actions.","scope":{"in":["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":["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"],"boundaries":[]},"distinguishingFeatures":["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)"],"structure":{"bundles":[{"id":"mineral-identity","name":"Mineral identity","description":"Establish what evidence warrants calling the examined phase luzonite.","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?","id":"phase-specific-composition-q01","kind":"measurement"},{"text":"Could adjacent phases, inclusions, or the analytical interaction volume explain departures from the expected composition?","id":"phase-specific-composition-q02","kind":"boundary"}]}]},{"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?","id":"structure-supported-name-q01","kind":"measurement"},{"text":"Does the structural measurement examine the same domain as the chemical measurement?","id":"structure-supported-name-q02","kind":"provenance"}]}]}]},{"id":"composition-and-species-boundaries","name":"Composition and species boundaries","description":"Interpret arsenic-antimony variation without conflating neighboring species or mixed analyses.","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?","id":"substitution-or-mixture-q01","kind":"measurement"},{"text":"Do elemental maps support within-phase variation, discrete inclusions, or unresolved mixtures?","id":"substitution-or-mixture-q02","kind":"boundary"}]}]},{"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?","id":"luzonite-famatinite-boundary-q01","kind":"definition"},{"text":"Does analytical uncertainty require an intermediate or unresolved designation rather than an unqualified luzonite label?","id":"luzonite-famatinite-boundary-q02","kind":"boundary"}]}]}]},{"id":"texture-and-identification-scale","name":"Texture and identification scale","description":"Connect identification evidence to grains, intergrowth domains, and the containing specimen.","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?","id":"resolvable-luzonite-domains-q01","kind":"measurement"},{"text":"Can the chosen method resolve those domains, or should the result describe an intergrowth?","id":"resolvable-luzonite-domains-q02","kind":"action"}]}]},{"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?","id":"optical-comparison-q01","kind":"measurement"},{"text":"Which chemical or structural observation excludes bornite or another visually similar phase?","id":"optical-comparison-q02","kind":"boundary"}]}]}]},{"id":"occurrence-and-material-state","name":"Occurrence and material state","description":"Relate the identified mineral to its geological setting and present specimen condition.","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?","id":"documented-occurrence-q01","kind":"provenance"},{"text":"Which associated minerals and contact textures were observed directly in this specimen?","id":"documented-occurrence-q02","kind":"measurement"}]}]},{"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?","id":"current-phase-integrity-q01","kind":"measurement"},{"text":"What heating, chemical cleaning, polishing, coating, or storage history could have affected the examined material?","id":"current-phase-integrity-q02","kind":"provenance"}]}]}]},{"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.","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?","id":"analytical-fraction-quality-q01","kind":"measurement"},{"text":"Would grain targeting, mapping, or physical separation provide a more representative phase analysis?","id":"analytical-fraction-quality-q02","kind":"action"}]}]},{"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?","id":"operation-specific-constraints-q01","kind":"action"},{"text":"Which verified material assessment or laboratory procedure specifies controls and waste handling for this arsenic-bearing sample and operation?","id":"operation-specific-constraints-q02","kind":"provenance"}]}]}]},{"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.","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.","questions":[{"text":"Which of these check these first hold for the sense of luzonite this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of luzonite this model covers, and on what evidence?","id":"evidence-identifiers-q01","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.","questions":[{"text":"Which of these real-world use hold for the sense of luzonite this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these typical measurements hold for the sense of luzonite this model covers, and on what evidence?","id":"evidence-measurements-q01","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.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of luzonite this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","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.","questions":[{"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?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Describe luzonite and its relation to enargite from mineralogical sources.","Record specimens and assays for an authorized collection or survey."],"mustNot":["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."],"requiresHuman":["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."],"affectedParties":["Mine and smelter workers","Communities near processing","Collectors"]},"owners":{"steward":"For deposits, the mineral rights holder under the mining authority; for specimens, their holder.","roles":[],"masterSystems":["Mining cadastres and mineral rights registers"]},"relations":[{"target":"Q3777820","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.luzonite","Wikidata: Q417482 (https://www.wikidata.org/wiki/Q417482)"]},"properties":{"applicability":"required","items":["Phase identification confidence: suspected | provisionally identified | structurally and chemically supported | disputed","Grain composition: Cu, As, Sb, S and detected additional elements in mass percent; normalized atoms per formula unit","Arsenic fraction relative to antimony: Atomic As/(As + Sb), dimensionless, with analytical uncertainty","Crystal structure determination: tetragonal luzonite supported | alternative structure supported | mixed or disordered | unresolved","Diffraction observations: d-spacings and lattice parameters in angstroms; relative intensities; acquisition conditions and fit uncertainty","Luzonite abundance: mass percent, volume percent, or mapped area percent, explicitly distinguished","Intergrowth and grain size: Grain and domain dimensions in micrometres, with named neighboring phases","Surface and preparation condition: fresh fracture | polished | coated | tarnished | visibly altered | powdered | unknown","Specimen provenance: Linked locality, collection record, parent sample, preparation history, and analytical subsample"]},"recognition":{"applicability":"required","items":["Pinkish-brown to dark grey metallic masses or crystals in copper deposits.","Very similar to enargite; told apart by analysis."]},"capabilities":{"applicability":"required","items":["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."]},"hazards":{"applicability":"required","items":["Contains arsenic, released as toxic fumes on heating.","Weathering releases arsenic and acid into water."]},"interfaces":{"applicability":"required","items":["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."]},"context":{"applicability":"required","items":["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."]}},"sources":[{"title":"Wikidata item Q417482: luzonite","url":"https://www.wikidata.org/wiki/Q417482","note":"identity and sense of the item"},{"title":"Wikipedia (de): Luzonit","url":"https://de.wikipedia.org/wiki/Luzonit","note":"general description of the item"}],"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?"],"resources":{"spec":"/models/things/publications/thing-q417482/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q417482/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T11:04:37Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-08T19:09:54+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}