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Beryl
Beryl

Emerald
Emerald



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Beryl
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Emerald

Beryl and Emerald Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

Weak to distinct
Strong dichroism: yellow green Lazzarelli

Dispersion

0.010.01
0.005 1
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Transparency

Transparent, Transparent to opaque
Transparent, Translucent, Transparent to translucent

Refractive Index

1.560-1.6041.565-1.602
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
Hexagonal

Birefringence

0.0040-0.00700.0040-0.0070
0 0.296
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Clarity

Transparent
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Beryl and Emerald Optic Character

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

Beryl and Emerald Transparency

Similar to their colors, Beryl and Emerald 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, Beryl is Transparent and Transparent to opaque while Beryl is Transparent and Transparent to opaque in appearance.