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Axinite
Beryllonite
Beryllonite and Axinite Optical Properties


Optical Properties
Luster
Vitreous  
Vitreous, Adamantine, Pearly  
Pleochroism
Strong  
-  
Dispersion
0.02  
99+
0.01  
99+
Transparency
-  
-  
Refractive Index
1.656-1.704  
1.552-1.562  
Optic Character
Biaxial/+  
-  
Crystal System
Triclinic  
monoclinic  
Birefringence
0.009-0.012  
0.009  
Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
TransparentUlrich Henn and Claudio C. Milisenda  
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