Olmiite (Kalahari Manganese Fields, South Africa)
N'Chwaning 2 Mine, Kalahari Manganese Fields, South Africa. 20mm x 12mm x 10mm.
Note: This specimen was photographed in a light box, the specimen is slightly darker than shown in natural light. Despite this, Olmiites of this calibre do not come around all that often, as shown it is perfect and most definitly a prime example of Olmiite from the Kalahari Manganese Fields.