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ATHENA

MINERALOGY

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Mineral:FERROFERRIOBERTIITE
Name:Ferro-ferri-obertiite
Formula:NaNa2(Fe2+3Fe3+Ti4+)Si8O22O2
Crystal System:Monoclinic
Strunz Nr:8/F.08-145
Group:Amphibole group group IV: sodic group
References:CM 48 (2010), 301; AM 97 (2012), 2031
Type Locality:Coyote Peak, Orick, Humboldt Co., California, USA

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