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Carnelian
Carnelian

Caledonite
Caledonite



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Carnelian
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Caledonite

Carnelian and Caledonite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Weak

Dispersion

0.010.05
0.005 1
👆🏻

Transparency

Translucent, Transparent to nearly opaque
Transparent

Refractive Index

1.535-1.5391.818-1.909
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.003-0.0090.091
0 0.296
👆🏻

Clarity

Translucent
Transparent

Carnelian and Caledonite Optic Character

Carnelian and Caledonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Carnelian and Caledonite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Carnelian and Caledonite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Carnelian and Caledonite Transparency

Similar to their colors, Carnelian and Caledonite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Carnelian is Translucent and Transparent to nearly opaque while Carnelian is Translucent and Transparent to nearly opaque in appearance.