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ATHENA

MINERALOGY

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Mineral: TODOROKITE
Formula: (Mn2+,Ca,Mg)Mn4+3O7.H2O
Crystal System: Monoclinic
IMA Number: 1962 s.p.
References: AM 68 (1983), 972; HB3 (1997); AM 88 (2003), 142
Type Locality: Todoroki mine, Hokkaido, Japan

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