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Whitlockite
Whitlockite

Tantalite
Tantalite



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Whitlockite
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Tantalite

Whitlockite and Tantalite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Resinous

Pleochroism

-
-

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

Transparent
TransparentWalter Schumann

Refractive Index

-99992.190-2.457
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.083
0 0.296
👆🏻

Clarity

Transparent
TransparentWalter Schumann

Whitlockite and Tantalite Optic Character

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

Whitlockite and Tantalite Transparency

Similar to their colors, Whitlockite 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, Whitlockite is Transparent while Whitlockite is Transparent in appearance.