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Hurlbutite
Hurlbutite

Taaffeite
Taaffeite



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Hurlbutite
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Taaffeite

Hurlbutite and Taaffeite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Weak

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.595-1.6041.70-1.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Hexagonal

Birefringence

0.0090.055
0 0.296
👆🏻

Clarity

Transparent
-

Hurlbutite and Taaffeite Optic Character

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

Hurlbutite and Taaffeite Transparency

Similar to their colors, Hurlbutite and Taaffeite 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, Hurlbutite is Transparent while Hurlbutite is Transparent in appearance.