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Carnelian
Carnelian

Sard
Sard



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Carnelian
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Sard
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.01
Translucent, Transparent to nearly opaque
1.535-1.539
-
Trigonal
0.003-0.009
Translucent
 
Waxy
-
0.01
Translucent
1.535-1.539
-
-
0.008-0.010
Translucent