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ATHENA

MINERALOGY

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Mineral: MACFALLITE
Formula: Ca2Mn3+3(SiO4)(Si2O7)(OH)3
Crystal System: Monoclinic
IMA Number: 1974-057
References: MM 43 (1979), 325; HB2/2 (1995)
Type Locality: Copper Harbor, Lake Manganese, Keeweenaw Co., Michigan, USA

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