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Hibonite
Hibonite

Vesuvianite
Vesuvianite



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Hibonite
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Vesuvianite

Hibonite and Vesuvianite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

O = brownish gray; E = gray
slight in colored varieties

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.79-1.8071.703-1.752
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
tetragonal

Birefringence

-99990.004-0.006
0 0.296
👆🏻

Clarity

-
-

Hibonite and Vesuvianite Optic Character

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

Hibonite and Vesuvianite Transparency

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