Olmiite, Celestine
N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
Small Cabinet, 8.5 x 8.0 x 3.5 cm
Olmiite is a rare, newly recognized manganese-dominant variant of poldervaartite and is found only at the N'Chwaning II Mine. This superb plate is covered with ball-like clusters of lustrous, tan, sharply crystallized, orthorhombic olmiite crystals on a complimentary bedded manganese oxide matrix. The scattering of water-clear celestine crystals is a beautiful accent. Olmiite was not named until 2007. Ex. Charlie Key dealer stock.