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Violane
Violane

Emerald
Emerald



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Violane
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Emerald

Violane and Emerald Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Strong dichroism: yellow green Lazzarelli

Dispersion

0.030.01
0.005 1
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Transparency

Translucent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.668-1.7031.565-1.602
1 3.25
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Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

0.024-0.0300.0040-0.0070
0 0.296
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Clarity

Translucent
-

Violane and Emerald Optic Character

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

Violane and Emerald Transparency

Similar to their colors, Violane 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, Violane is Translucent while Violane is Translucent in appearance.