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ATHENA

MINERALOGY

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Mineral: FERROFERRIFLUOROHORNBLENDE
Name: Ferro-ferri-fluoro-hornblende 
Formula: ▢Ca2(Fe2+4Fe3+)(AlSi7O22)F2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Ca subgroup. Hornblende group
References: AM 97 (2012), 2031

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