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ATHENA

MINERALOGY

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Mineral: BANNERMANITE
Formula: (Na,K)xV4+xV5+6-xO15 (0,5 < x < 0,9)
Crystal System: Monoclinic
IMA Number: 1980-010
References: AM 68 (1983), 634; HB3 (1997)
Type Locality: Izalco volcano, El Salvador

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