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Zircon
Zircon

Chrysoberyl
Chrysoberyl



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X
Zircon
X
Chrysoberyl

Zircon and Chrysoberyl Optical Properties

Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

Weak
X = red; Y = yellow-orange; Z = emerald-green

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.810-2.0241.746-1.763
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

tetragonal
Orthorhombic

Birefringence

0.047-0.0550.007-0.013
0 0.296
👆🏻

Clarity

Transparent
Transparent

Zircon and Chrysoberyl Optic Character

Zircon and Chrysoberyl optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Zircon and Chrysoberyl 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 Zircon and Chrysoberyl 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. Chrysoberyl has Biaxial/+ character.

Zircon and Chrysoberyl Transparency

Similar to their colors, Zircon and Chrysoberyl 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, Zircon is Transparent while Zircon is Transparent in appearance.