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Manganilvaite, Quartz, Calcite, Pyrite


Manganilvaite : Ca(Mn2+,Fe2+)2Fe3+[O|OH|Si2O7], Quartz : SiO2, Calcite : CaCO3, Pyrite : FeS2

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Locality: Daye Co., Huangshi Prefecture, Hubei Province, China
Spheroidal groups, very rich of small, black, very bright crystals on a growth of Quartz crystals on a bed of Calcite crystals and small crystals of Pyrite.
Daye mining area, Hubei, China
Found in 2002
Specimen size: 6 x 5.6 x 3.7 cm


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