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ATHENA

MINERALOGY

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Mineral: MONTGOMERYITE
Formula: Ca4MgAl4(PO4)6(OH)4.12H2O
Crystal System: Monoclinic
Group: Calcioferrite group. Montgomeryite subgroup
IMA Number: 1940
References: AM 61 (1976), 12; HB4 (2000)
Type Locality: Clay Canyon, Fairfield, Utah Co., Utah, USA

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