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Hurlbutite
Hurlbutite

Vesuvianite
Vesuvianite



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Hurlbutite
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Vesuvianite

Hurlbutite and Vesuvianite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

-
slight in colored varieties

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.595-1.6041.703-1.752
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.0090.004-0.006
0 0.296
👆🏻

Clarity

Transparent
-

Hurlbutite and Vesuvianite Optic Character

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

Similar to their colors, Hurlbutite and Vesuvianite 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.