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ATHENA

MINERALOGY

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Mineral: GLAUCONITE
Formula: (K,Na)(Mg,Fe2+,Fe3+)(Fe3+,Al)(Si,Al)4O10(OH)2
Crystal System: Monoclinic
Group: Mica group. Interlayer-deficient mica. Dioctahedral
References: Rev. Min. 13 (1984), 575; HB2/1 (1995); CM 36 (1998), 905
Comments: Not approved

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