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samarskite-(y)

Samarskite is a radioactive rare earth mineral series which includes samarskite-(Y) with formula: (YFe3+Fe2+U,Th,Ca)2(Nb,Ta)2O8 and samarskite-(Yb) with formula (YbFe3+)2(Nb,Ta)2O8 The formula for smarskite-(Y) is also given as: (Y,Fe3+,U)(Nb,Ta)O4

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  • John Wiley
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