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Zoisite
Cavansite
Cavansite and Zoisite Optical Properties


Optical Properties
Luster
Vitreous  
Vitreous, Pearly  
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green  
Visible: X=Z= colorless Y= blue  
Dispersion
0.02  
99+
0.04  
33
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.  
-  
Refractive Index
1.685-1.707  
1.542  
Optic Character
-  
-  
Crystal System
Orthorhombic  
Orthorhombic  
Birefringence
0.006-0.018  
0.009  
Clarity
Transparent  
-  
Benefits >>
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