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ATHENA

MINERALOGY

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Mineral:ADACHIITE
Formula:CaFe2+3Al6(Si5AlO18)(BO3)3(OH)3(OH)
Crystal System:Rhomboedral (Trigonal)
Strunz Nr:8/E.19-110
Group:Tourmaline group Vacant subgroup
References:MM 77/6 (2013), 2700; Jap. Min. Pet. Sci. 109 (2014), 74; AM 100 (2015), 334
Type Locality:Kiura mine, Saiki City, Oita Prefecture, Japan

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