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Hiddenite
Hiddenite

Stibiotantalite
Stibiotantalite



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Hiddenite
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Stibiotantalite

Hiddenite and Stibiotantalite Optical Properties

Optical Properties

Luster

Vitreous
Adamantine

Pleochroism

Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.657-1.6812.37-2.45
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.014-0.0160.08
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Hiddenite and Stibiotantalite Optic Character

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

Hiddenite and Stibiotantalite Transparency

Similar to their colors, Hiddenite and Stibiotantalite 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, Hiddenite is Transparent while Hiddenite is Transparent in appearance.