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Yttrotantalite-(Y)

Type Locality
Ytterby, Resarö, Vaxholm, Uppland, Sweden
Mineral Data
(Y,Ca,U4+,Fe2+)2(Ta,Nb)2O8
Strunz: 
4.DG.10
Physical Properties
Streak: 
Grey
Hardness: 
5.0 - 5.5
Synonyms
Synonyms: 
Yttrotantalite-Y, Yttrotantalite Y, Yttrotantalite - Y and Yttrotantalite