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ATHENA

MINERALOGY

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Mineral: KEIVIITE-(Yb)
Name: Кейвиит-(Yb)
Formula: (Yb,Y)2Si2O7
Crystal System: Monoclinic
Group: Thortveitite group
IMA Number: 1987 s.p.
References: MZ 5/5 (1983), 94; HB2/1 (1995)
Type Locality: Ploskaya Mtn, Western Keivy Massif, Kola Peninsula, Russia

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