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ATHENA

MINERALOGY

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Mineral: GRIPHITE
Formula: Na4Ca6(Mn,Fe2+,Mg)19Li2Al8(PO4)24(F,OH)8
Crystal System: Cubic
IMA Number: 1891
References: BM 101 (1978), 536; AM 64 (1979), 1333; HB4 (2000)
Type Locality: Everly mine, Harney City, Pennington Co., South Dakota, USA

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