20hhgd.is ((OLMIITE)), $10 MINIMUM BID, N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape, South Africa, 2.5 x 1.5 x 1 cm, Thumbnail | |
Lustrous gemmy translucent to transparent crystal on matrix. ex Glenn Davidson collection. |