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Jacobsite
Jacobsite

Tantalite
Tantalite



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Jacobsite
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Tantalite

Jacobsite and Tantalite Optical Properties

Optical Properties

Luster

-
Resinous

Pleochroism

-
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

Translucent
TransparentWalter Schumann

Refractive Index

-99992.190-2.457
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.083
0 0.296
👆🏻

Clarity

Translucent
TransparentWalter Schumann

Jacobsite and Tantalite Optic Character

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

Jacobsite and Tantalite Transparency

Similar to their colors, Jacobsite 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, Jacobsite is Translucent while Jacobsite is Translucent in appearance.