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ATHENA

MINERALOGY

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Mineral:POLYMIGNITE = Metamict ZIRCONOLITE
Formula:(Ca,Fe,Y,Th)(Nb,Ti,Ta,Zr)O4
Crystal System:Orthorhombic
Strunz Nr:4/C.20-20
Group:Pyrochlore group Elsmoreite subgroup
References:CM 28 (2010), 673

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