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18 statements · 44% with external sources · numbers in brackets are citations
On other databases
5 identifiers linking simpsonite across the web's reference databases
18 statements · 44% with external sources · numbers in brackets are citations
5 identifiers linking simpsonite across the web's reference databases
From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0
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.