Mangoancalcite with Calcite (Kalahari Manganese Fields, South Africa)
N'Chwaning 2 Mine, Kalahari Manganese Fields, South Africa. 80mm x 60mm.
Interesting specimen with the mangoancalcite dominating the top of the specimen while the little calcites are scattered around, all of this on the black manganese matrix. Packed shipping weight +/- 400gr.