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Sphalerite
Gaspite
Gaspite and Sphalerite Optical Properties


Optical Properties
Luster
Adamantine  
-  
Pleochroism
-  
-  
Dispersion
0.16  
13
0.02  
99+
Transparency
Transparent, Translucent  
-  
Refractive Index
2.368-2.371  
1.610-1.830  
Optic Character
-  
-  
Crystal System
Isometric  
-  
Birefringence
-9999  
-9999  
Clarity
Transparent  
-  
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