Difference between revisions of "Template:Demantoid"

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| Optic nature || isotrope
 
| Optic nature || isotrope
 
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| Refraction index || 1.85-1.89  
+
| Refractive index || 1.85-1.89  
 
|-  
 
|-  
 
| Birefringence || none
 
| Birefringence || none

Revision as of 11:40, 1 November 2006

Demantoid Garnet
Chemical composition Ca3Fe2(SiO4)3

Calcium Iron Silicate

Crystal system Cubic
Habit dodecahedra
Cleavage none
Hardness 6.5
Optic nature isotrope
Refractive index 1.85-1.89
Birefringence none
Specific gravity 3.85
Lustre vitreous to adamantine