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ATHENA

MINERALOGY

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Mineral: LAUBMANNITE (of Frondel) = mixture DUFRENITE, KIDWELLITE, BERAUNITE
Formula: (Fe2+,Mn2+,Ca)3Fe3+6(PO4)4(OH)12
Crystal System: Orthorhombic
References: AM 55 (1970), 135; AM 75 (1990), 1197; EJM 13 (2001), 99; MM 68 (2004), 147
Type Locality: Coon Creek Mine (York Mine), Shady, Polk Co., Arkansas, USA

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