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Parisite
Parisite

Tantalite
Tantalite



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Parisite
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Tantalite

Parisite and Tantalite Optical Properties

Optical Properties

Luster

-
Resinous

Pleochroism

-
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
TransparentWalter Schumann

Refractive Index

1.671-1.7712.190-2.457
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.099-0.1000.083
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentWalter Schumann

Parisite and Tantalite Optic Character

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

Parisite and Tantalite Transparency

Similar to their colors, Parisite and Tantalite 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, Parisite is while Parisite is in appearance.