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Tantalite
Tantalite

Vesuvianite
Vesuvianite



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Tantalite
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Vesuvianite

Tantalite and Vesuvianite Optical Properties

Optical Properties

Luster

Resinous
Vitreous, Resinous

Pleochroism

-
slight in colored varieties

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

TransparentWalter Schumann
-

Refractive Index

2.190-2.4571.703-1.752
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.0830.004-0.006
0 0.296
👆🏻

Clarity

TransparentWalter Schumann
-

Tantalite and Vesuvianite Optic Character

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

Tantalite and Vesuvianite Transparency

Similar to their colors, Tantalite 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, Tantalite is TransparentWalter Schumann while Tantalite is TransparentWalter Schumann in appearance.