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Parisite
Piemontite
Piemontite and Parisite Optical Properties


Optical Properties
Luster
-  
Vitreous  
Pleochroism
-  
visible  
Dispersion
0.03  
99+
0.02  
99+
Transparency
-  
-  
Refractive Index
1.671-1.771  
1.725-1.756  
Optic Character
-  
-  
Crystal System
-  
monoclinic  
Birefringence
0.099-0.100  
0.025-0.076  
Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
-  
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