Template:Zircon
From The Gemology Project
Revision as of 12:01, 1 November 2006 by Africanuck (talk | contribs)
Zircon | |
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Chemical composition | Zirconium silicate |
Crystal system | Tetragonal |
Habit | edit me |
Cleavage | edit me |
Fracture | edit me |
Hardness | 7.5 |
Optic nature | edit me |
Refractive index | 1.93 - 1.98 |
Birefringence | 0.059 |
Dispersion | edit me |
Specific gravity | 4.69 |
Lustre | Resinous to Adamantine |
Pleochroism | edit me |