Manganoan Calcite, N’chwaning Mine lll, Kalahari Manganese Field, Northern Cape, South Africa
This is a Manganoan Calcite from, N’chwaning Mine lll, Kalahari Manganese Field, Northern Cape, South Africa
Crystal Dimensions: 6cm (2.3”) x 4.5cm (1.7”)
Crystal Weight: 116 grams
Manganoan calcite or manganocalcite is a variety of calcite rich in manganese, which gives the mineral a pink color.
Its chemical formula is (Ca,Mn)CO 3.
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