20hhgd.is ((CALCITE, ANDRADITE, HAUSMANNITE, HEMATITE)), $30 minimum bid, N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape, South Africa, 7 x 5 x 4 cm, Cabinet | |
Large rhombs of Calcite with small black crystals of Hausmannite and Hematite with light orange Andradite. ex Glenn Davidson collection. |