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Bort
Bort

Chrysoberyl
Chrysoberyl



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X
Bort
X
Chrysoberyl

Bort and Chrysoberyl Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

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

Dispersion

-0.02
0.005 1
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Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

-99991.746-1.763
1 3.25
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Optic Character

-
Biaxial/+

Crystal System

-
Orthorhombic

Birefringence

-99990.007-0.013
0 0.296
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Clarity

-
Transparent

Bort and Chrysoberyl Optic Character

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

Bort and Chrysoberyl Transparency

Similar to their colors, Bort 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, Bort is while Bort is in appearance.