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Torbanite
Torbanite

Riebeckite
Riebeckite



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X
Torbanite
X
Riebeckite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.02
-
-9999
-
-
-9999
-
 
Vitreous, Silky
X = blue
0.02
-
1.680-1.698
-
monoclinic
0.005-0.008
-