Calcite - N'Chwaning mining area, South Africa - 9.0 x 6.0 x 6.0 cms.
Mineral: Calcite
Locality: N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
Dimensions: 9.0 x 6.0 x 6.0 cms.