20hhgd.is ((HAUSMANNITE)), $10 MINIMUM BID, N'Chwaning Mines, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape, South Africa, 1 x 1 x 1 cm, Thumbnail | |
Single octahedral crystal of Hausmannite made up of many small oriented crystal faces. ex Glen Davidson collection. |