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ATHENA

MINERALOGY

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Mineral: FERRIWINCHITE
Name: Ferri-winchite, Ферривинчит
Formula: ▢NaCa(Mg,Fe2+)4Fe3+Si8O22(OH)2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Na-Ca subgroup. Winchite group
IMA Number: 2012 s.p.
References: MM 42 (1978), 554; CM 39 (2001), 171; ZVMO 134/3 (2005), 74; AM 91 (2006), 1203
Type Locality: Ilmen Mts, Chelyabinsk, Urals, Russia Ilmen Mountains alkaline complex, Ural, Russia
Comments: ▢ = vacancy

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