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Charoite
Charoite

Benitoite
Benitoite



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Charoite
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Benitoite

Charoite and Benitoite Optical Properties

Optical Properties

Luster

Pearly, Chatoyant
Vitreous

Pleochroism

-
O = colorless; E = purple

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.545-1.5601.757-1.804
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Hexagonal

Birefringence

0.0090.047
0 0.296
👆🏻

Clarity

Translucent
Transparent

Charoite and Benitoite Optic Character

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

Similar to their colors, Charoite and Benitoite 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.