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ATHENA

MINERALOGY

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Mineral: FERROALUMINOTSCHERMAKITE = FERROTSCHERMAKITE
Name: Ferro-alumino-tschermakite
Formula: ▢Ca2Fe2+3Al2(Si7Al)O22(OH)2 (?)
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Ca subgroup. Tschermakite group
References: MM 42 (1978), 550; AM 63 (1978), 1023
Comments: ▢ = vacancy

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