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Nepouite
Nepouite

Phosphophyllite
Phosphophyllite



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Nepouite
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Phosphophyllite

Nepouite and Phosphophyllite Optical Properties

Optical Properties

Luster

Waxy, Pearly
-

Pleochroism

Weak
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.600-1.6301.595-1.621
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

-99990.021
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Nepouite and Phosphophyllite Optic Character

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

Similar to their colors, Nepouite and Phosphophyllite 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.