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ATHENA

MINERALOGY

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Mineral: BIOTITE = BIOTITE series name
Formula: K(Mg,Fe2+)3(Al,Fe3+)Si3O10(OH,F)2 (?)
Crystal System: Monoclinic / Anorthic (Triclinic)
Group: Mica group
References: HB2/1 (1995); CM 36 (1998), 905
Type Locality: Trioctahedral micas without Li

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