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ATHENA

MINERALOGY

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Mineral: TETRAFERRIANNITE
Formula: KFe2+3Fe3+Si3O10(OH)2
Crystal System: Monoclinic
Group: Mica group. True micas. Trioctahedral
IMA Number: 1998 s.p.
References: CM 36 (1998), 905; MR 39 (2008), 131
Type Locality: Wittenoom Gorge, Pilbara Region, Western Australia, Australia

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