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ATHENA

MINERALOGY

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Mineral:GRUNERITE
Formula:[]Fe2+7Si8O22(OH)2
Crystal System:Monoclinic
Strunz Nr:8/F.07-30
Group:Amphibole group group I: Mg, Fe, Mn, Li
References:HB2/1 (1995)
Type Locality:Collobrières, Var, France
Comments:[] = vacancy

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