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Rubellite
Rubellite

Ruby
Ruby



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Rubellite
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Ruby

Rubellite and Ruby Optical Properties

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Optical Properties

Luster

-
Vitreous, Adamantine

Pleochroism

Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Strong: purplish-red

Dispersion

0.020.02
0.005 1
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Transparency

Transparent, Translucent
Transparent, Translucent, Transparent to opaque

Refractive Index

1.614-1.6661.762-1.778
1 3.25
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Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

0.014-0.0400.008
0 0.296
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Clarity

Transparent
Transparent

Rubellite and Ruby Optic Character

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

Similar to their colors, Rubellite and Ruby 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.