Template:Fluorite
From The Gemology Project
Revision as of 11:41, 1 November 2006 by Africanuck (talk | contribs)
| Fluorite | |
|---|---|
| Chemical composition | CaF2
Calcium Fluoride |
| Crystal system | Cubic |
| Habit | octahedral, cubes, interprenatrant twins |
| Cleavage | perfect, octahedral |
| Fracture | conchoidal |
| Hardness | 4 |
| Optic nature | isotrope |
| Refractive index | 1.434 |
| Birefringence | isotrope |
| Dispersion | very low, 0.007 |
| Specific gravity | 3.18 |
| Lustre | poor vitreous |
| Fluorescence | bluish-white, purple (LW) |
