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Fluorite
Fluorite
☒

Precious Opal
Precious Opal
☒



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X
Fluorite
X
Precious Opal
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.01
Transparent, Translucent, Transparent to translucent
1.432-1.436
-
cubic
-9999
Transparent
 
-
-
0.01
Transparent, Translucent
1.370-1.470
-
-
-9999
Transparent