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Scheelite
Scheelite

Chrysoberyl
Chrysoberyl



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Scheelite
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Chrysoberyl

Scheelite and Chrysoberyl Optical Properties

Optical Properties

Luster

Vitreous, Adamantine
Vitreous

Pleochroism

Definite dichoric in yellow (yellow to orange-brown)
X = red; Y = yellow-orange; Z = emerald-green

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Translucent, Transparent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.918-1.9361.746-1.763
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

tetragonal
Orthorhombic

Birefringence

0.0160.007-0.013
0 0.296
👆🏻

Clarity

Translucent
Transparent

Scheelite and Chrysoberyl Optic Character

Scheelite and Chrysoberyl optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Scheelite and Chrysoberyl 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 Scheelite and Chrysoberyl 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. Chrysoberyl has Biaxial/+ character.

Scheelite and Chrysoberyl Transparency

Similar to their colors, Scheelite and Chrysoberyl 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, Scheelite is Translucent and Transparent while Scheelite is Translucent and Transparent in appearance.