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Neptunite
Neptunite

Wernerite
Wernerite



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Neptunite
X
Wernerite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
x=yellow-orange
0.03
Translucent
1.692-1.734
-
monoclinic
0.0294-0.0452
Translucent
 
-
-
0.02
Transparent
1.531-1.600
-
-
0.004-0.037
Transparent