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ATHENA

MINERALOGY

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Mineral: FERROECKERMANNITE
Name: Ferro-eckermannite
Formula: NaNa2(Fe2+Al)Si8O22(OH)2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Amphibole Na subgroup. Eckermannite group
References: MR 29 (1998), 169

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