Difference between revisions of "Template:Almandine"
From The Gemology Project
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Revision as of 01:33, 10 November 2006
Almandine Garnet | |
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Chemical composition | Fe3Al2(SiO4)3
Iron Aluminium Silicate |
Crystal system | Cubic |
Habit | dodecahedra |
Cleavage | none |
Hardness | 7.5 |
Optic nature | isotrope |
Refractive index | 1.78-1.81 |
Birefringence | none |
Specific gravity | 3.95 - 4.20 |
Lustre | vitreous |