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Viridine
Viridine

Mottramite
Mottramite



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Viridine
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Mottramite

Viridine and Mottramite Optical Properties

Optical Properties

Luster

-
Greasy

Pleochroism

-
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.629-1.6602.170
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.007-0.0130.150
0 0.296
👆🏻

Clarity

Transparent
-

Viridine and Mottramite Optic Character

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

Viridine and Mottramite Transparency

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