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Sinhalite
Sinhalite

Nepouite
Nepouite



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Sinhalite
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Nepouite

Sinhalite and Nepouite Optical Properties

Optical Properties

Luster

-
Waxy, Pearly

Pleochroism

Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
Weak

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.665-1.7121.600-1.630
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.036-0.042-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Sinhalite and Nepouite Optic Character

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

Sinhalite and Nepouite Transparency

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