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Rubellite
Rubellite

Hiddenite
Hiddenite



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Rubellite
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Hiddenite

Rubellite and Hiddenite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli

Dispersion

0.020.02
0.005 1
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Transparency

Transparent, Translucent
Transparent

Refractive Index

1.614-1.6661.657-1.681
1 3.25
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Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.014-0.0400.014-0.016
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Rubellite and Hiddenite Optic Character

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

Similar to their colors, Rubellite and Hiddenite 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.