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Precious Opal
Precious Opal

Chrysoberyl
Chrysoberyl



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Precious Opal
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Chrysoberyl

Precious Opal and Chrysoberyl Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.01
Transparent, Translucent
1.370-1.470
-
-
-9999
Transparent
 
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

Precious Opal and Chrysoberyl Optic Character

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

Precious Opal and Chrysoberyl Transparency

Similar to their colors, Precious Opal 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, Precious Opal is while Precious Opal is in appearance.