Yttrotantalite-(Y)

Yttrotantalite-(Y) : (Y,Ca,U⁴⁺,Fe²⁺)₂(Ta,Nb)₂O₈

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Locality: Ytterby, Resarö, Vaxholm, Uppland, Sweden

Several elongated black yttrotantalite crystals frozen in matrix with old label from George English ca. 1900. See article: Ytterby, Sweden: A Classic Mineral Locality in Min. Rec., May-June 1971. Ex. Al Sebela collection. Overall size of mineral specimen: 3.5x3x1 cm. Size of individual crystals: 3-8 mm.

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Yttrotantalite-(Y)

Yttrotantalite-(Y) : (Y,Ca,U4+,Fe2+)2(Ta,Nb)2O8

Yttrotantalite-(Y) : (Y,Ca,U⁴⁺,Fe²⁺)₂(Ta,Nb)₂O₈