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Arsenopyrite, Pharmacosiderite


Arsenopyrite : FeAsS - (Fe0.90Co0.10)AsS, Pharmacosiderite : KFe3+4[(OH)4|(AsO4)3] · 6-7H2O

Photo Copyright © Brent Thorne  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: 300(-foot) level, Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Crystal of arsenopyrite with pharmacosiderite associated with parasymplesite. From the 300' level of the mine. Collected by Otto Reiter. Field of view, 3mm x 3mm. Brent Thorne specimen and photograph.

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