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Pollucite
Pollucite

Nepouite
Nepouite



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Pollucite
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Nepouite

Pollucite and Nepouite Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Waxy, Pearly

Pleochroism

-
Weak

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.517-1.5251.600-1.630
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Orthorhombic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
-

Pollucite and Nepouite Optic Character

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

Pollucite and Nepouite Transparency

Similar to their colors, Pollucite 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, Pollucite is Transparent and Translucent while Pollucite is Transparent and Translucent in appearance.