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Bowenite and Dravite Optical Properties


Optical Properties

Luster
Vitreous  
Waxy, Silky, Resinous, Greasy  

Pleochroism
Very strong: pale yellow colorless  
-  

Dispersion
0.02  
99+
0.01  
99+

Transparency
Transparent  
TranslucentHerve Nicolas Lazzarelli  

Refractive Index
1.614-1.666  
1.530-1.575  

Optic Character
-  
-  

Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m  
-  

Birefringence
0.014-0.032  
-9999  

Clarity
Transparent  
TranslucentHerve Nicolas Lazzarelli  

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