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Poudretteite
Poudretteite

Violane
Violane



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Poudretteite
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Violane

Poudretteite and Violane Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Colorless
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.511-1.5321.668-1.703
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.0210.024-0.030
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Poudretteite and Violane Optic Character

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

Poudretteite and Violane Transparency

Similar to their colors, Poudretteite and Violane 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, Poudretteite is while Poudretteite is in appearance.