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ATHENA

MINERALOGY

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Mineral: FLUORHORNBLENDE
Name: Fluor-hornblende
Formula: (▢/Na,K)Ca2({Fe2+/Mg}4{Fe3+/Mg})(AlSi7O22)F2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Ca subgroup. Tschermakite group
References: Oxford journals: Journal of Petrology 39/2 (1998), 227-232

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