Sturmanite
N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape, South Africa
- Dimensions
- 1.1 x 1.2 x 0.7 cm
- Size class
- Thumbnail
The specimen is a thumbnail single crystal of sturmanite with twinning crystals penetrating both flat sides. The tabular crystal is hexagonal with bevelled edges tapering towards a balded...
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