20hhgd.r ((OLMIITE, BULTFONTEINITE)), $15 MINIMUM BID, N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape, South Africa, 4 x 2 x 2 cm, Miniature | |
Three excellent lustrous crystals of Olmiite on matrix with white acicular crystals of Bultfonteinite. ex Glenn Davidson collection. |