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Chrysoberyl
Chrysoberyl

Benitoite
Benitoite



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X
Chrysoberyl
X
Benitoite

Chrysoberyl and Benitoite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
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
 
Vitreous
O = colorless; E = purple
0.04
Transparent
1.757-1.804
-
Hexagonal
0.047
Transparent

Chrysoberyl and Benitoite Optic Character

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

Similar to their colors, Chrysoberyl and Benitoite 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, Chrysoberyl is while Chrysoberyl is in appearance.