- N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
- Miniature, 4.5 x 2.5 x 1.9 cm
Olmiite is a newly recognized species thought previously to have been brown Poldervaartite. A beautiful grouping of four Olmiite clusters on matrix, the largest of which is 1.5 cm across. The luster on these classic tan crystals is excellent, and the fan-shaped habit of the clusters is very attractive. A fine example of this form of the species. Ex. Charlie Key stock.