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Nepouite
Nepouite

Emerald
Emerald



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Nepouite
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Emerald

Nepouite and Emerald Optical Properties

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Optical Properties

Luster

Waxy, Pearly
Vitreous

Pleochroism

Weak
Strong dichroism: yellow green Lazzarelli

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

1.600-1.6301.565-1.602
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Hexagonal

Birefringence

-99990.0040-0.0070
0 0.296
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Clarity

-
-

Nepouite and Emerald Optic Character

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

Nepouite and Emerald Transparency

Similar to their colors, Nepouite 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, Nepouite is while Nepouite is in appearance.