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MINERALOGY

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Mineral: YTTROTANTALITE-(Y)
Name: Yttrotantalite-(Y)
Formula: (Y,U,Fe2+)(Ta,Nb)(O,OH)4
Crystal System: Orthorhombic
Group: Columbite supergroup ?
IMA Number: 2022 s.p.
References: MM 31 (1958), 937; Acta Cryst. 23 (1967), 939; HB3 (1997); EJM 34 (2022), 467
Type Locality: Ytterby feldspar quarry, Resarö island, Stockholm, Sweden
Comments: Questionable

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