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Iolite
Iolite

Bort
Bort



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Iolite
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Bort
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.02
Transparent, Translucent, Transparent to translucent
1.52-1.56
-
Orthorhombic
-9999
Transparent to translucent
 
-
-
-
-
-9999
-
-
-9999
-