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ATHENA

MINERALOGY

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Mineral: VERMICULITE
Formula: (Mg,Fe2+,Al)3(Al,Si)4O10(OH)2.4H2O
Crystal System: Monoclinic
Group: Smectite group
IMA Number: 1824
References: NJMM (1988), 297; HB2/2 (1995)
Type Locality: Milbury, Worcester Co., Massachusetts, USA

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