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Bustamite
Bustamite

Star Ruby
Star Ruby



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Bustamite
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Star Ruby
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Weak
0.02
Transparent, Translucent
1.662-1.707
-
Triclinic
0.013-0.015
Transparent
 
-
-
0.02
Transparent, Translucent
1.757-1.780
-
-
0.007-0.010
Transparent