16.58: Rhodochrosite
- Page ID
- 6486
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| Rhodochrosite | |
|---|---|
| Chemical composition | MnCO3 + Fe, Ca |
| Crystal system | Hexagonal |
| Habit | Rhombohedral |
| Colors | pink, red, yellowish, gray, brown |
| Hardness | 3.5 - 4 |
| Specific gravity | 3.40 - 3.70 |
| Optic nature | Uniaxial - |
| Refractive Index | 1.60 - 1.83 |
| Birefringence | 0.208 - 0.220 |
| Lustre | Vitreous to pearly |
Figure (\(PageIndex{1}\): Spectacular Cabochon 60x30mm
Capillitas, Catamarca Province, Argentina
Photo courtesy of Barbra Voltaire