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Sellaite
Sellaite

Scheelite
Scheelite



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Sellaite
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Scheelite

Sellaite and Scheelite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Adamantine

Pleochroism

-
Definite dichoric in yellow (yellow to orange-brown)

Dispersion

0.030.04
0.005 1
👆🏻

Transparency

Transparent
Translucent, Transparent

Refractive Index

1.378-1.3901.918-1.936
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
tetragonal

Birefringence

0.0120.016
0 0.296
👆🏻

Clarity

Transparent
Translucent

Sellaite and Scheelite Optic Character

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

Sellaite and Scheelite Transparency

Similar to their colors, Sellaite 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, Sellaite is Transparent while Sellaite is Transparent in appearance.