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Boulder Opal
Aragonite
Aragonite and Boulder Opal Optical Properties


Optical Properties
Luster
-  
Vitreous, Resinous  
Pleochroism
-  
StrongArthur Thomas  
Dispersion
0.01  
99+
0.17  
12
Transparency
Transparent, Translucent  
Transparent, Translucent  
Refractive Index
1.370-1.470  
1.525-1.686  
Optic Character
-  
-  
Crystal System
-  
Orthorhombic  
Birefringence
-9999  
0.155  
Clarity
Transparent  
Transparent  
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