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About: Coffinite     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatRadioactiveMinerals, within Data Space : dbpedia.org associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceMineralmineralyago:WikicatMineralsyago:WikicatTetragonalMineralsyago:WikicatUraniumMineralsyago:WikicatSilicateMineralsyago:WikicatSilicatesyago:Abstraction100002137yago:Chemical114806838yago:Compound114818238yago:Material114580897yago:Matter100020827yago:Mineral114662574yago:Part113809207yago:PhysicalEntity100001930yago:Relation100031921yago:WikicatHydroxideMineralsyago:Salt115010703yago:Silicate115040033yago:Substance100019613yago:WikicatRadioactiveMinerals New Facet based on Instances of this Class

Coffinite is a uranium-bearing silicate mineral with formula: U(SiO4)1−x(OH)4x. It occurs as black incrustations, dark to pale-brown in thin section. It has a grayish-black streak. It has a brittle to conchoidal fracture. The hardness of coffinite is between 5 and 6.