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Beryl
Beryl

Chrome-Chalcedony
Chrome-Chalcedony



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Beryl
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Chrome-Chalcedony

Beryl and Chrome-Chalcedony Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Waxy

Pleochroism

Weak to distinct
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent, Transparent to opaque
Translucent

Refractive Index

1.560-1.6041.530-1.543
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.0040-0.00700.003-0.009
0 0.296
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Clarity

Transparent
Translucent

Beryl and Chrome-Chalcedony Optic Character

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

Similar to their colors, Beryl and Chrome-Chalcedony 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.