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ATHENA

MINERALOGY

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Mineral: WINDHOEKITE
Formula: (Ca,Mn2+)2Fe3+3(Si8O20)(OH)4.10H2O
Crystal System: Monoclinic
Group: Palygorskite group
IMA Number: 2010-083
References: EJM 24/1 (2012), 171
Type Locality: Ariskop phonolite Quarry, Windhoek, Namibia

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