Difference between revisions of "Anatase"
From The Gemology Project
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Latest revision as of 18:43, 2 December 2012
Anatase | |
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Chemical composition | TiO2 |
Crystal system | Tetragonal |
Habit | Dipyramidal |
Cleavage | Perfect |
Fracture | Sub-conchoidal |
Hardness | 5.5 - 6 (brittle) |
Optic nature | Uniaxial - |
Refractive index | 2.488 - 2.561 |
Birefringence | 0.073 |
Specific gravity | 3.89 |
Lustre | Adamantine/metallic |