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Charoite
Charoite

Cavansite
Cavansite



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Charoite
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Cavansite

Charoite and Cavansite Optical Properties

Optical Properties

Luster

Pearly, Chatoyant
Vitreous, Pearly

Pleochroism

-
Visible: X=Z= colorless Y= blue

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.545-1.5601.542
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.0090.009
0 0.296
👆🏻

Clarity

Translucent
-

Charoite and Cavansite Optic Character

Charoite and Cavansite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Charoite and Cavansite 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 Charoite and Cavansite 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.

Charoite and Cavansite Transparency

Similar to their colors, Charoite and Cavansite 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, Charoite is Translucent while Charoite is Translucent in appearance.