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Bentley Copper Zinc Mine Mining Atlas

1aurorite. two centimeter-sized chunks of aurorite a hydrated manganese silver calcium oxide disseminated throughout calcite from the type locality of the aurora mine treasure hill hamilton white pine county nevada.aurorite was originally thought to be an argentian chalcophanite but the relatively high concentration of silver 7.5 - 9 and low zinc content most formulas dont even show.

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