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Austinite
Sphene
Sphene and Austinite Optical Properties


Optical Properties
Luster
Subadamantine, Silky  
-  
Pleochroism
-  
-  
Dispersion
0.03  
99+
0.05  
26
Transparency
-  
-  
Refractive Index
1.759  
1.84-2.11  
Optic Character
-  
-  
Crystal System
Orthorhombic  
monoclinic  
Birefringence
0.024  
-9999  
Clarity
-  
-  
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