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Charoite
Charoite

Almandine
Almandine



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Charoite
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Almandine

Charoite and Almandine Optical Properties

Optical Properties

Luster

Pearly, Chatoyant
Greasy, Vitreous

Pleochroism

-
None

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.545-1.5601.770-1.820
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
cubic

Birefringence

0.009-9999
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Charoite and Almandine Optic Character

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

Similar to their colors, Charoite and Almandine 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.