Minerals / Rhodochrosite. Broken Hill,Australia.

Rhodochrosite,  MnCO₃ is a manganese carbonate mineral, sometimes called mangano calcite. The substitution of calcite for manganese in the mineral leads to a pink coloration. Crystals of rhodochrosite are scalenahedral or rhombohedral, and are usually a deep pink colour. This specimen, from Broken Hill in Australia. is massive, with no crystals present.

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