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Zinnwaldite
Zinnwaldite

Chrysoberyl
Chrysoberyl



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X
Zinnwaldite
X
Chrysoberyl

Zinnwaldite and Chrysoberyl Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Pearly, Vitreous
Distinct
0.02
-
1.565-1.625
-
monoclinic
0.040-0.050
-
 
Vitreous
X = red; Y = yellow-orange; Z = emerald-green
0.02
Transparent, Translucent, Transparent to translucent
1.746-1.763
Biaxial/+
Orthorhombic
0.007-0.013
Transparent

Zinnwaldite and Chrysoberyl Optic Character

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

Zinnwaldite and Chrysoberyl Transparency

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