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Sard and Anhydrite Optical Properties


Optical Properties

Luster
Pearly, Greasy  
Waxy  

Pleochroism
For violet varieties  
-  

Dispersion
0.01  
99+
0.01  
99+

Transparency
Transparent  
Translucent  

Refractive Index
1.570-1.614  
1.535-1.539  

Optic Character
-  
-  

Crystal System
Orthorhombic  
-  

Birefringence
0.042-0.044  
0.008-0.010  

Clarity
Transparent  
Translucent  

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