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About: Simpsonite     Goto   Sponge   NotDistinct   Permalink

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

Type: Thingdul:ChemicalObjectchemical substanceMineralmineralyago:WikicatMineralsyago:WikicatTrigonalMineralsyago:WikicatNiobiumMineralsyago:WikicatOxideMineralsyago:Abstraction100002137yago:Material114580897yago:Matter100020827yago:Mineral114662574yago:Part113809207yago:PhysicalEntity100001930yago:Relation100031921yago:Substance100019613yago:WikicatAluminiumMineralsyago:WikicatTantalumMinerals New Facet based on Instances of this Class

Simpsonite has a general formula of Al4(Ta,Nb)3O13(OH). It occurs as euhedral to subhedral tabular to short and prismatic crystals, commonly in subparallel groups. Under the petrographic microscope it has a very high relief.