Difference between revisions of "Template:Rhodochrosite"
From The Gemology Project
Nick Lombard (talk | contribs) |
Nick Lombard (talk | contribs) |
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| Refractive Index || 1.60 - 1.83 | | Refractive Index || 1.60 - 1.83 | ||
|- | |- | ||
| − | | Birefringence || 0.208 - 0.220 Uniaxial | + | | Birefringence || 0.208 - 0.220 Uniaxial - |
|- | |- | ||
| Lustre || Vitreous to pearly | | Lustre || Vitreous to pearly | ||
|} | |} | ||
Revision as of 01:12, 22 December 2007
| Rhodocrosite | |
|---|---|
| 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 |
| Refractive Index | 1.60 - 1.83 |
| Birefringence | 0.208 - 0.220 Uniaxial - |
| Lustre | Vitreous to pearly |
