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Diamond
Diamond

Tantalite
Tantalite



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Diamond
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Tantalite

Diamond and Tantalite Optical Properties

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Optical Properties

Luster

Adamantine
Resinous

Pleochroism

None
-

Dispersion

0.040.03
0.005 1
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Transparency

Transparent, Translucent, Transparent to opaque
TransparentWalter Schumann

Refractive Index

2.417-2.4192.190-2.457
1 3.25
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Optic Character

-
-

Crystal System

cubic
Orthorhombic

Birefringence

-99990.083
0 0.296
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Clarity

Transparent
TransparentWalter Schumann

Diamond and Tantalite Optic Character

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

Diamond and Tantalite Transparency

Similar to their colors, Diamond 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, Diamond is Transparent, Translucent and Transparent to opaque while Diamond is Transparent, Translucent and Transparent to opaque in appearance.