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Achroite
Achroite

Scheelite
Scheelite



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Achroite
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Scheelite

Achroite and Scheelite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.02
Transparent, Translucent
1.614-1.666
-
-
0.014-0.040
Transparent
 
Vitreous, Adamantine
Definite dichoric in yellow (yellow to orange-brown)
0.04
Translucent, Transparent
1.918-1.936
-
tetragonal
0.016
Translucent

Achroite and Scheelite Optic Character

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

Achroite and Scheelite Transparency

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