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Riebeckite
Riebeckite

Clintonite
Clintonite



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X
Riebeckite
X
Clintonite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Silky
X = blue
0.02
-
1.680-1.698
-
monoclinic
0.005-0.008
-
 
Vitreous, Pearly
X = colorless
0.02
-
1.643-1.648
-
monoclinic
0.012-0.015
-