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Sapphire
Sapphire
☒

Tremolite
Tremolite
☒



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Sapphire
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Tremolite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Adamantine
Strong
0.02
Transparent, Translucent, Transparent to opaque
1.762-1.788
-
Trigonal
0.008-0.009
Transparent
 
Vitreous, Silky
-
0.02
Transparent
1.599-1.637
-
monoclinic
0.023-0.028
Transparent