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Topaz
Topaz

Hanksite
Hanksite



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Topaz
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Hanksite

Topaz and Hanksite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Weak
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.606-1.6441.481
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Hexagonal

Birefringence

0.008-0.0110.020
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Topaz and Hanksite Optic Character

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

Topaz and Hanksite Transparency

Similar to their colors, Topaz and Hanksite 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, Topaz is Transparent while Topaz is Transparent in appearance.