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Vesuvianite
Vesuvianite

Taaffeite
Taaffeite



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Vesuvianite
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Taaffeite

Vesuvianite and Taaffeite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

slight in colored varieties
Weak

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.703-1.7521.70-1.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Hexagonal

Birefringence

0.004-0.0060.055
0 0.296
👆🏻

Clarity

-
-

Vesuvianite and Taaffeite Optic Character

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

Vesuvianite and Taaffeite Transparency

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