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Rhyolite
Rhyolite

Hiddenite
Hiddenite



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Rhyolite
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Hiddenite

Rhyolite and Hiddenite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

-99991.657-1.681
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
monoclinic

Birefringence

-99990.014-0.016
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Rhyolite and Hiddenite Optic Character

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

Rhyolite and Hiddenite Transparency

Similar to their colors, Rhyolite 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, Rhyolite is while Rhyolite is in appearance.