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ATHENA

MINERALOGY

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Mineral: BEIDELLITE
Formula: (Na,Ca0,5)0,3Al2(Si,Al)4O10(OH)2.nH2O
Crystal System: Monoclinic
Group: Smectite group
IMA Number: 1925
References: AM 47 (1962), 137; HB2/1 (1995)
Type Locality: Beidell, Saguache Co., Colorado, USA

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