- Thumbnail, 2.9 x 1.5 x 1.0 cm
- N'Chwaning I Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
A classic Sturmanite thumbnail featuring a very good sized, dark golden-yellow color with sharp, lustrous faces and plenty of gemmy areas. The piece is associated with white Charlesite towards the center of the crystal. It is sitting on a small mound of matrix and displays very well from both sides. Ex. Kosnar Collection.