Difference between revisions of "Template:Fluorite"
From The Gemology Project
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Calcium Fluoride | Calcium Fluoride | ||
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| − | | Crystal system || | + | | Crystal system || [[Crystals_&_Their_Structure#Cubic_Crystal_System | Cubic]] |
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| Habit || octahedral, cubes, interprenatrant twins | | Habit || octahedral, cubes, interprenatrant twins | ||
Revision as of 05:24, 2 October 2006
| Fluorite | |
|---|---|
| Chemical composition | CaF2
Calcium Fluoride |
| Crystal system | Cubic |
| Habit | octahedral, cubes, interprenatrant twins |
| Cleavage | perfect, octahedral |
| Fracture | conchoidal |
| Hardness | 4 |
| Optic nature | isotrope |
| Refaction index | 1.434 |
| Birefringence | isotrope |
| Dispersion | very low, 0.007 |
| Specific gravity | 3.18 |
| Lustre | poor vitreous |
| Fluorescence | bluish-white, purple (LW) |
