N'CHWANING II MINE, N'CHWANING MINES, KURUMAN, KALAHARI MANGANESE FIELD, NORTHERN CAPE, SOUTH AFRICA
Dimensions: 5.9 X 5.7 X 4.9 cm.
Group of very sharp olmiite crystals, which show visible orthorhombic forms and polycrystalline growths on their faces. The brilliance and transparence are excellent and the color varies from beige to salmon depending on the type of the light. Olmiite aggregates are disposed very aerial on a matrix covered by several brilliant calcite crystals and some small globular aggregates of oyelite. THE MAIN CRYSTAL IS: 0.8 x 0.6 x 0.4 cm. Fluorescence UVC (calcite).