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Tantalite
Tantalite

Garnet
Garnet



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Tantalite
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Garnet

Tantalite and Garnet Optical Properties

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Optical Properties

Luster

Resinous
Vitreous, Adamantine

Pleochroism

-
None

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

TransparentWalter Schumann
Transparent, Transparent to translucent

Refractive Index

2.190-2.4571.730-1.895
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.083-9999
0 0.296
👆🏻

Clarity

TransparentWalter Schumann
Transparent

Tantalite and Garnet Optic Character

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

Similar to their colors, Tantalite and Garnet 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.