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Agrellite
Sinhalite
Sinhalite and Agrellite Optical Properties


Optical Properties
Luster
Pearly  
-  
Pleochroism
colorless.  
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli  
Dispersion
0.01  
99+
0.02  
99+
Transparency
-  
-  
Refractive Index
1.567  
1.665-1.712  
Optic Character
-  
-  
Crystal System
Triclinic  
Orthorhombic  
Birefringence
0.014  
0.036-0.042  
Clarity
-  
TransparentUlrich Henn and Claudio C. Milisenda  
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