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Biotite
Cymophane
Cymophane and Biotite Optical Properties


Optical Properties
Luster
Vitreous, Pearly  
-  
Pleochroism
Strong  
-  
Dispersion
-  
0.01  
99+
Transparency
-  
Transparent  
Refractive Index
1.565-1.625  
1.739-1.770  
Optic Character
-  
Biaxial/+  
Crystal System
monoclinic  
-  
Birefringence
0.03-0.07  
0.007-0.013  
Clarity
-  
Transparent  
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