Bultfonteinite (Kalahari Manganese Fields, South Africa)
N'Chwaning 2 Mine, Kalahari Manganese Fields, South Africa. 35mm x 30mm.
A interesting specimen, one would generally expect to see the bultfonteinite associated with another mineral, this is not the case with this specimen it's simply bultfonteinite, quite unusual indeed. Packed shipping weight +/- 80gr.