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Tantalite
Tantalite

Star Ruby
Star Ruby



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Tantalite
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Star Ruby

Tantalite and Star Ruby Optical Properties

Optical Properties

Luster

Resinous
-

Pleochroism

-
-

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

TransparentWalter Schumann
Transparent, Translucent

Refractive Index

2.190-2.4571.757-1.780
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.0830.007-0.010
0 0.296
👆🏻

Clarity

TransparentWalter Schumann
Transparent

Tantalite and Star Ruby Optic Character

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

Similar to their colors, Tantalite and Star Ruby 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.