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ATHENA

MINERALOGY

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Mineral: STEVENSITE
Formula: (Ca,Na)xMg3-x(Si4O10)(OH)2
Crystal System: Monoclinic
Group: Smectite group
IMA Number: 1873
References: AM 44 (1959), 342; HB2/2 (1995)
Type Locality: Bergen Hill, New Jersey, USA

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