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Rubellite
Rubellite

Charlesite
Charlesite



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Rubellite
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Charlesite

Rubellite and Charlesite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Nearly colorless to pale golden yellow

Dispersion

0.020.03
0.005 1
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Transparency

Transparent, Translucent
-

Refractive Index

1.614-1.6661.492
1 3.25
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Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

0.014-0.040-9999
0 0.296
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Clarity

Transparent
-

Rubellite and Charlesite Optic Character

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

Rubellite and Charlesite Transparency

Similar to their colors, Rubellite and Charlesite 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, Rubellite is Transparent and Translucent while Rubellite is Transparent and Translucent in appearance.