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Bort
Bort

Beryl
Beryl



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Bort
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Beryl

Bort and Beryl Optical Properties

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Optical Properties

Luster

-
Vitreous, Resinous

Pleochroism

-
Weak to distinct

Dispersion

-0.01
0.005 1
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Transparency

-
Transparent, Transparent to opaque

Refractive Index

-99991.560-1.604
1 3.25
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Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

-99990.0040-0.0070
0 0.296
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Clarity

-
Transparent

Bort and Beryl Optic Character

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

Bort and Beryl Transparency

Similar to their colors, Bort and Beryl 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.