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Mottramite
Mottramite

Scheelite
Scheelite



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Mottramite
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Scheelite

Mottramite and Scheelite Optical Properties

Optical Properties

Luster

Greasy
Vitreous, Adamantine

Pleochroism

Visible X=Y= canary yellow to greenish yellow
Definite dichoric in yellow (yellow to orange-brown)

Dispersion

0.040.04
0.005 1
👆🏻

Transparency

-
Translucent, Transparent

Refractive Index

2.1701.918-1.936
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.1500.016
0 0.296
👆🏻

Clarity

-
Translucent

Mottramite and Scheelite Optic Character

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

Mottramite and Scheelite Transparency

Similar to their colors, Mottramite and Scheelite 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, Mottramite is while Mottramite is in appearance.