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Vesuvianite Idocrase
Vesuvianite Idocrase

Iolite
Iolite



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Vesuvianite Idocrase
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Iolite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.02
Transparent
1.700-1.725
Uniaxial/-
-
0.002-0.012
Transparent
 
Vitreous
-
0.02
Transparent, Translucent, Transparent to translucent
1.52-1.56
-
Orthorhombic
-9999
Transparent to translucent