{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.oxide-class-of-minerals","code":"thing-q945532","url":"https://ver.cy/models/thing/q945532/","name":"oxide class of minerals","alternateNames":["decavanadate family of minerals","bahariyaite","lucabindiite mineral group","parahibbingite","uranoclite","mikehowardite","baddeleyite mineral group","liguowuite","garpenbergite","igelströmite","tomiolloite","pomite"],"kind":"thing","status":"published","version":"0.2.0-wave.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":"Class 4 of the Nickel-Strunz ninth-edition mineral classification includes oxides and hydroxides together with specified vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites and iodates; oxide examples include hematite, magnetite, corundum, rutile, cassiterite and spinel, and many members are important ores of iron, aluminium, titanium and tin, while some provide gemstones such as ruby and sapphire.","purpose":"Let an agent handle oxide minerals by species, identification, occurrence, ore use, gem varieties and handling, with mineralogical references.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Membership follows Nickel-Strunz ninth-edition class 4, which includes oxides, hydroxides and specified non-oxide groups.","Many members are ores.","Members are often hard and dense, although these properties do not establish class membership.","Members include major gemstones."],"structure":{"bundles":[{"id":"species","name":"Species","description":"Which mineral.","layers":[{"id":"identify","name":"Identify","description":"Species.","findings":[{"id":"identify-finding","name":"Identify","description":"Species identity.","questions":[{"text":"Which oxide mineral species is it, according to the IMA list?","kind":"provenance"},{"text":"What is its formula?","kind":"provenance"}]}]},{"id":"tests","name":"Tests","description":"Physical tests.","findings":[{"id":"tests-finding","name":"Tests","description":"Physical tests.","questions":[{"text":"What are its streak, hardness, magnetism and density?","kind":"measurement"},{"text":"Which lookalikes exist?","kind":"definition"}]}]}]},{"id":"ores","name":"Ores","description":"Economic use.","layers":[{"id":"metals","name":"Metals","description":"Ore minerals.","findings":[{"id":"metals-finding","name":"Metals","description":"Ore minerals.","questions":[{"text":"Which metal is extracted from this oxide, and how in general terms?","kind":"definition"},{"text":"Where are major deposits?","kind":"provenance"}]}]},{"id":"impacts","name":"Impacts","description":"Mining impacts.","findings":[{"id":"impacts-finding","name":"Impacts","description":"Mining impacts.","questions":[{"text":"What environmental and social impacts are reported for this mining?","kind":"provenance"},{"text":"Which standards apply?","kind":"provenance"}]}]}]},{"id":"gems","name":"Gems","description":"Gemstones.","layers":[{"id":"varieties","name":"Varieties","description":"Ruby and sapphire.","findings":[{"id":"varieties-finding","name":"Varieties","description":"Gem varieties.","questions":[{"text":"Is this corundum a ruby or sapphire, and what causes its colour?","kind":"definition"},{"text":"Which lab report confirms it?","kind":"provenance"}]}]},{"id":"treatment","name":"Treatment","description":"Treatments and synthetics.","findings":[{"id":"treatment-finding","name":"Treatment","description":"Treatments.","questions":[{"text":"Has the gem been heat-treated, filled or synthesised?","kind":"boundary"},{"text":"Must it be disclosed?","kind":"provenance"}]}]}]},{"id":"handling","name":"Handling","description":"Safety.","layers":[{"id":"radioactive","name":"Radioactive","description":"Uranium oxides.","findings":[{"id":"radioactive-finding","name":"Radioactive","description":"Radioactive specimens.","questions":[{"text":"Is the specimen a uranium oxide such as uraninite?","kind":"boundary"},{"text":"How should it be stored and handled?","kind":"provenance"}]}]},{"id":"collecting","name":"Collecting","description":"Rules.","findings":[{"id":"collecting-finding","name":"Collecting","description":"Collecting rules.","questions":[{"text":"Is collecting allowed at this locality?","kind":"provenance"},{"text":"Which permits are required?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Identify and describe oxide minerals using approved names and properties.","Report where oxide ores occur and what they are used for, citing sources."],"mustNot":["Misidentify an oxide mineral when selling or valuing it.","Collect specimens from protected sites or private land without permission.","Understate hazards such as dust or radioactivity from certain oxide minerals.","Help trade ores from conflict areas in breach of sourcing rules."],"requiresHuman":["Authorizing extraction or sale of ore deposits."]},"ethics":{"considerations":["Mining oxide ores such as tin and iron shapes landscapes and the lives of nearby communities.","Some ores finance armed conflict or are mined with child labour."],"affectedParties":["Mining communities","Mine workers","Buyers and collectors"]},"owners":{"steward":"Nobody owns the class; the holder of mining rights answers for a deposit.","roles":[],"masterSystems":["Mineral rights and mining cadastres"]},"relations":[{"target":"Q7946","type":"parent","note":"registry parent class"},{"target":"mineral","type":"related","note":"category"},{"target":"hematite","type":"related","note":"example"},{"target":"iron, aluminium, titanium and tin","type":"related","note":"use"},{"target":"Strunz class 4","type":"related","note":"classification"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.oxide-class-of-minerals","Wikidata: Q945532 (https://www.wikidata.org/wiki/Q945532)","Nickel-Strunz class: 4 oxides and hydroxides"]},"properties":{"applicability":"required","items":["Scratch hardness:  Mohs scale - Hardness varies by mineral species and is assessed by comparison with reference minerals.","Mass density:  g/cm3 - Density is measured from specimen mass and volume, accounting for pores and associated minerals.","Magnetic susceptibility:  dimensionless SI - Volume magnetic susceptibility is measured with calibrated magnetic instrumentation and varies substantially by species."]},"recognition":{"applicability":"required","items":["Hematite with red-brown streak","Magnetic magnetite","Silicates are the SiO4-based class","Often dense, hard, metallic or adamantine crystals and masses, from black magnetite to red ruby."]},"capabilities":{"applicability":"required","items":["identify oxide mineral species","look up composition and properties","find ore deposits and uses","identify gem varieties such as ruby and sapphire"]},"hazards":{"applicability":"required","items":["Radioactive uranium oxides","Treated or synthetic gems sold as natural","Dust from mining and processing"]},"interfaces":{"applicability":"required","items":["IMA mineral nomenclature","Mining and radiation rules for uranium oxides"]},"context":{"applicability":"required","items":["Mineralogy, mining, metallurgy and gemstones.","simple oxides such as hematite and corundum","multiple oxides such as spinel and magnetite","hydroxides such as goethite and gibbsite","rutile and cassiterite group","uranium and vanadium oxides"]}},"sources":[{"title":"Wikidata item Q945532: oxide class of minerals","url":"https://www.wikidata.org/wiki/Q945532","note":"identity and sense of the item"},{"title":"Wikipedia: Oxide mineral","url":"https://en.wikipedia.org/wiki/Oxide_mineral","note":"general description of the item"}],"openQuestions":["Should each species be a separate entry?","How should mineral databases be linked?","How should gem treatments be recorded?"],"resources":{"spec":"/models/things/publications/thing-q945532/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q945532/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T13:11:21Z","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 2026-10-07T12:16:35+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}