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Anhydrite
Anhydrite

Scheelite
Scheelite



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Anhydrite
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Scheelite

Anhydrite and Scheelite Optical Properties

Optical Properties

Luster

Pearly, Greasy
Vitreous, Adamantine

Pleochroism

For violet varieties
Definite dichoric in yellow (yellow to orange-brown)

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

Transparent
Translucent, Transparent

Refractive Index

1.570-1.6141.918-1.936
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.042-0.0440.016
0 0.296
👆🏻

Clarity

Transparent
Translucent

Anhydrite and Scheelite Optic Character

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

Anhydrite and Scheelite Transparency

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