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Rhyolite
Rhyolite

Obsidian
Obsidian



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Rhyolite
X
Obsidian
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.01
-
-9999
-
Trigonal
-9999
-
 
Vitreous
-
0.01
Transparent, Translucent
1.450-1.550
-
-
-9999
Transparent