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Ettringite
Ettringite

Fluorite
Fluorite



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Ettringite
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Fluorite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.04
Transparent, Translucent
1.470-1.491
-
Trigonal
0.021
Transparent
 
Vitreous
-
0.01
Transparent, Translucent, Transparent to translucent
1.432-1.436
-
cubic
-9999
Transparent