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ATHENA

MINERALOGY

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Mineral: FERROFERRIWINCHITE
Name: Ferro-ferri-winchite
Formula: ▢[CaNa][Fe2+4(Fe3+,Al)]Si8O22(OH)2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Na-Ca subgroup. Winchite group
References: AM 97 (2012), 2031 -

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