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Jet lignite
Jet lignite

Emerald
Emerald



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Jet lignite
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Emerald

Jet lignite and Emerald Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Strong dichroism: yellow green Lazzarelli

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

-99991.565-1.602
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

-99990.0040-0.0070
0 0.296
👆🏻

Clarity

-
-

Jet lignite and Emerald Optic Character

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

Jet lignite and Emerald Transparency

Similar to their colors, Jet lignite 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, Jet lignite is while Jet lignite is in appearance.