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ATHENA

MINERALOGY

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Mineral: DEERITE
Formula: (Fe2+,Mn)6(Fe3+,Al)3Si6O20(OH)5
Crystal System: Monoclinic pseudo Orthorhombic
Group: Howieite group
IMA Number: 1964-016
References: MM 43 (1979), 251; HB2/1 (1995)
Type Locality: Laytonville quarry, Laytonville, Mendocino Co., California, USA

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