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Orbicular jasper
Montebrasite
Montebrasite and Orbicular jasper Optical Properties


Optical Properties
Luster
-  
-  
Pleochroism
-  
-  
Dispersion
0.01  
99+
0.02  
99+
Transparency
-  
TransparentWalter Schumann  
Refractive Index
-9999  
1.578-1.646  
Optic Character
-  
-  
Crystal System
-  
-  
Birefringence
-9999  
0.020-0.030  
Clarity
-  
TransparentWalter Schumann  
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