Template:Heliodor
From The Gemology Project
Revision as of 04:01, 2 October 2006 by Africanuck (talk | contribs)
| Heliodor | |
|---|---|
| Chemical composition | Beryllium Aliminium silicate |
| Crystal system | Hexagonal |
| Habit | edit me |
| Cleavage | edit me |
| Fracture | edit me |
| Hardness | 7.5 |
| Optic nature | edit me |
| Refraction index | 1.57 - 1.58 |
| Birefringence | edit me |
| Dispersion | edit me |
| Specific gravity | 2.80 |
| Lustre | Vitreous |
| Pleochroism | edit me |
