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Bustamite and Cassiterite Optical Properties


Optical Properties

Luster
Adamantine, Greasy   
Vitreous   

Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow   
Weak   

Dispersion
0.07   
6
Not Available   

Transparency
Transparent, Translucent   
Transparent, Translucent   

Refractive Index
1.990-2.105   
1.662-1.707   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Triclinic   

Birefringence
0.096-0.098   
0.013-0.015   

Clarity
Transparent   
Transparent   

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