Mineral: Rhodochrosite, Pyrite
Locality: Emma Mine, Butte, Butte District, Silver Bow County, Montana, USA
Dimensions: 90 mm x 52 mm x 34 mm

Description: Druse with Rhodochrosite crystals formed by a prism with rhombohedral terminal faces and where two different growth phases can be clearly seen, an inner first one (perhaps Calcite further replaced by Rhodochrosite) that is translucent and with a more intense color and a second one with a lighter pink. Small Pyrite crystals.

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