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Nepouite
Nepouite

Anhydrite
Anhydrite



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Nepouite
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Anhydrite

Nepouite and Anhydrite Optical Properties

Optical Properties

Luster

Waxy, Pearly
Pearly, Greasy

Pleochroism

Weak
For violet varieties

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.600-1.6301.570-1.614
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

-99990.042-0.044
0 0.296
👆🏻

Clarity

-
Transparent

Nepouite and Anhydrite Optic Character

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

Similar to their colors, Nepouite and Anhydrite 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.