Difference between revisions of "Template:Amethyst"
From The Gemology Project
Africanuck (talk | contribs) |
Africanuck (talk | contribs) |
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! colspan=2 | Amethyst | ! colspan=2 | Amethyst | ||
|- | |- | ||
− | | Chemical composition || | + | | Chemical composition || Silicon dioxide |
|- | |- | ||
− | | Crystal system || | + | | Crystal system || Trigonal |
|- | |- | ||
| Habit || edit me | | Habit || edit me | ||
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| Fracture || edit me | | Fracture || edit me | ||
|- | |- | ||
− | | Hardness || | + | | Hardness || 7 |
|- | |- | ||
| Optic nature || edit me | | Optic nature || edit me | ||
|- | |- | ||
− | | | + | | Refraction index || 1.544 - 1.553 |
|- | |- | ||
− | | Birefringence || | + | | Birefringence || 0.009 |
|- | |- | ||
− | | Dispersion || | + | | Dispersion || 0.013 |
|- | |- | ||
− | | Specific gravity || | + | | Specific gravity || 2.63 - 2.65 |
|- | |- | ||
− | | Lustre || | + | | Lustre || Vitreous |
|- | |- | ||
| Pleochroism || edit me | | Pleochroism || edit me |
Revision as of 01:27, 1 October 2006
Amethyst | |
---|---|
Chemical composition | Silicon dioxide |
Crystal system | Trigonal |
Habit | edit me |
Cleavage | edit me |
Fracture | edit me |
Hardness | 7 |
Optic nature | edit me |
Refraction index | 1.544 - 1.553 |
Birefringence | 0.009 |
Dispersion | 0.013 |
Specific gravity | 2.63 - 2.65 |
Lustre | Vitreous |
Pleochroism | edit me |