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ATHENA

MINERALOGY

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Mineral: ADACHIITE
Formula: CaFe2+3Al6(Si5AlO18)(BO3)3(OH)3(OH)
Crystal System: Rhombohedral (Trigonal)
Group: Tourmaline group
IMA Number: 2012-101
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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