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ATHENA

MINERALOGY

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Mineral: PYATENKOITE-(Y)
Name: Пятенкоит-(Y)
Formula: Na5(Y,Dy,Gd)(Ti,Nb)Si6O18.6H2O
Crystal System: Rhombohedral (Trigonal)
Group: Hilairite group
IMA Number: 1995-034
References: ZVMO 125/4 (1996), 72; AM 82 (1997), 622; MR 28 (1997), 222
Type Locality: Mt Alluaiv, Lovozero alkaline complex, Kola Peninsula, Russia

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