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About: Violarite     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Substance100019613, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceMineralmineralyago:WikicatCubicMineralsyago:WikicatMineralsyago:WikicatNickelMineralsyago:WikicatSulfideMineralsyago:Abstraction100002137yago:Material114580897yago:Matter100020827yago:Mineral114662574yago:Part113809207yago:PhysicalEntity100001930yago:Relation100031921yago:WikicatIronMineralsyago:Substance100019613 New Facet based on Instances of this Class

Violarite (Fe2+Ni23+S4) is a supergene sulfide mineral associated with the weathering and oxidation of primary pentlandite nickel sulfide ore minerals. Violarite crystallises in the isometric system, with a hardness of 4.5 to 5.5 and a specific gravity of about 4, is dark violet grey to copper-red, often with verdigris and patina from associated copper and arsenic sulfides, and is typically in amorphous to massive infill of lower saprolite ultramafic lithologies.