20hhgd.is ((STURMANITE, $20 MINIMUM BID, N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape, South Africa, 4.5 x 3 x 1.5 cm, Miniature | |
Lustrous yellow crystals of Sturmanite from N'Chwaning. ex Glenn Davidson collection. ex crystal Spring Minerals specimen |