Difference between revisions of "Template:Heliodor"
From The Gemology Project
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! colspan=2 | Heliodor | ! colspan=2 | Heliodor | ||
|- | |- | ||
| − | | Chemical composition || Beryllium | + | | Chemical composition || Aluminium Beryllium Silicate Al<sub>2</sub>Be<sub>3</sub>(Si<sub>6</sub>O<sub>18</sub>) |
|- | |- | ||
| − | | Crystal system || Hexagonal | + | | Crystal system || [[Crystals_&_Their_Structure#Hexagonal_Crystal_System | Hexagonal]] |
|- | |- | ||
| Habit || edit me | | Habit || edit me | ||
Revision as of 06:36, 2 October 2006
| Heliodor | |
|---|---|
| Chemical composition | Aluminium Beryllium Silicate Al2Be3(Si6O18) |
| 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 |
