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Vlasovite
Vlasovite

Mottramite
Mottramite



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Vlasovite
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Mottramite

Vlasovite and Mottramite Optical Properties

Optical Properties

Luster

Greasy, Vitreous, Pearly
Greasy

Pleochroism

(x): colorless. (y): colorless. (z): colorless.
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.6072.170
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

-99990.150
0 0.296
👆🏻

Clarity

-
-

Vlasovite and Mottramite Optic Character

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

Vlasovite and Mottramite Transparency

Similar to their colors, Vlasovite 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, Vlasovite is while Vlasovite is in appearance.