- Ruizite, Calcite
- Miniature, 4.0 x 3.8 x 1.3 cm
- N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
A superb specimen of beautiful bladed crystals of the rare silicate Ruizite. The crystals, up to about 2 mm in length, grow in flower-like clusters liberally spread among the gemmy Calcite rhombs. The gemmy Ruizite blades have a deep cinnamon color and excellent luster. Ex. Charlie Key.