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Beryl
Beryl

Turquoise
Turquoise



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Beryl
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Turquoise

Beryl and Turquoise Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Waxy

Pleochroism

Weak to distinct
Weak

Dispersion

0.010.03
0.005 1
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Transparency

Transparent, Transparent to opaque
Translucent, Opaque

Refractive Index

1.560-1.6041.610-1.650
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
Triclinic

Birefringence

0.0040-0.00700.040
0 0.296
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Clarity

Transparent
Translucent

Beryl and Turquoise Optic Character

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

Similar to their colors, Beryl and Turquoise 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.