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ATHENA

MINERALOGY

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Mineral:KEIVIITE-(Y)
Formula:(Y,Yb)2Si2O7
Crystal System:Monoclinic
Strunz Nr:8/C.01-20
Group:Thortveitite group
References:MZ 7/6 (1985), 79; HB2/1 (1995)
Type Locality:Ploskaya Mtn, Western Keivy Massif, Kola Peninsula, Russia

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