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Amethyst
Amethyst

Chrysoberyl
Chrysoberyl



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Amethyst
X
Chrysoberyl

Amethyst and Chrysoberyl Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
None
X = red; Y = yellow-orange; Z = emerald-green
1.3 Dispersion
0.010.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.544-1.5531.746-1.763
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.0090.007-0.013
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Amethyst and Chrysoberyl Optic Character

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

Amethyst and Chrysoberyl Transparency

Similar to their colors, Amethyst 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, Amethyst is Transparent and Transparent to translucent while Amethyst is Transparent and Transparent to translucent in appearance.