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Star Ruby
Star Ruby

Topaz
Topaz



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Star Ruby
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Topaz

Star Ruby and Topaz Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Weak

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

1.757-1.7801.606-1.644
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.007-0.0100.008-0.011
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Star Ruby and Topaz Optic Character

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

Star Ruby and Topaz Transparency

Similar to their colors, Star Ruby and Topaz 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, Star Ruby is Transparent and Translucent while Star Ruby is Transparent and Translucent in appearance.