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Creedite
Creedite
☒

Star Sapphire
Star Sapphire
☒



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X
Creedite
X
Star Sapphire
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.02
Transparent, Translucent
1.461-1.485
-
monoclinic
0.024
Transparent
 
-
-
0.02
Transparent, Translucent
1.758-1.780
-
-
0.007-0.010
Transparent