Calcite Cast (South Africa)

N'Chwaning 2 Mine, Kalahari Manganese Fields, South Africa. 50mm x 50mm.
Availability: In stock
SKU: 3559

This is really something quite unique. It's a proper cast of calcite that has replaced something at one or other stage of development. Note the 2nd image where one can see it's quite hollow. Packed shipping weight +/- 90gr.