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Verdite
Verdite

Sellaite
Sellaite



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Verdite
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Sellaite

Verdite and Sellaite Optical Properties

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Optical Properties

Luster

Vitreous, Silky
Vitreous

Pleochroism

Extreme
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.5801.378-1.390
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
tetragonal

Birefringence

-99990.012
0 0.296
👆🏻

Clarity

Translucent
Transparent

Verdite and Sellaite Optic Character

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

Verdite and Sellaite Transparency

Similar to their colors, Verdite and Sellaite 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, Verdite is Translucent while Verdite is Translucent in appearance.