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ATHENA

MINERALOGY

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Mineral: JAHNSITE-(CaMnMn)
Formula: CaMn2+Mn2+2Fe3+2(PO4)4(OH)2.8H2O
Crystal System: Monoclinic
Group: Jahnsite group. Jahnsite subgroup
IMA Number: 1987-020a
References: AM 75 (1990), 401; NM 90-94 (1997); HB4 (2000)
Type Locality: Mangualde pegmatite, Viseu distr., Beira Alta, Portugal

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