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Nephrite
Nephrite

Chrysoberyl
Chrysoberyl



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Nephrite
X
Chrysoberyl

Nephrite and Chrysoberyl Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
None
X = red; Y = yellow-orange; Z = emerald-green
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.600-1.6271.746-1.763
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.0270.007-0.013
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Nephrite and Chrysoberyl Optic Character

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

Nephrite and Chrysoberyl Transparency

Similar to their colors, Nephrite 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, Nephrite is Translucent while Nephrite is Translucent in appearance.