- Charlesite, Sturmanite
- Miniature, 4.0 x 3.0 x 1.7 cm
- N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
- Ex. Scott Williams
Charlesite is a close relative of sturmanite, and this specimen appears to consist of white charlesite crystals with an outer layer of bright yellow sturmanite. The crystals measure to one centimeter. Ex Scott Williams Collection.