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Goethite
Cassiterite
Cassiterite and Goethite Optical Properties


Optical Properties
Luster
Adamantine  
Adamantine, Greasy  
Pleochroism
VisibleArthur Thomas  
Pleochroic haloes have been observed. Dichroic in yellow  
Dispersion
0.05  
0.07  
18
Transparency
-  
Transparent, Translucent  
Refractive Index
2.26-2.398  
1.990-2.105  
Optic Character
-  
-  
Crystal System
Orthorhombic  
tetragonal  
Birefringence
0.138  
0.096-0.098  
Clarity
-  
Transparent  
Benefits >>
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