Difference between revisions of "Template:Fluorite"

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| Optic nature || isotrope
 
| Optic nature || isotrope
 
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| Refraction index || 1.434  
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| Refractive index || 1.434  
 
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| Birefringence || isotrope
 
| Birefringence || isotrope

Revision as of 11:41, 1 November 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
Refractive index 1.434
Birefringence isotrope
Dispersion very low, 0.007
Specific gravity 3.18
Lustre poor vitreous
Fluorescence bluish-white, purple (LW)