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Sugilite
Sugilite
☒

Morion
Morion
☒



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Sugilite
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Morion
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Weak
0.02
Translucent
1.607-1.612
-
Hexagonal
0.003
Translucent
 
-
Definite: brown reddish-brownWalter Schumann
0.01
Transparent, Translucent
1.544-1.553
-
-
0.009
Transparent