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Peridot
Peridot

Chrysoberyl
Chrysoberyl



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Peridot
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Chrysoberyl

Peridot and Chrysoberyl Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
X = red; Y = yellow-orange; Z = emerald-green
1.3 Dispersion
Albite Optical ..
0.02
Rank: 18 (Overall)
0.02
Rank: 24 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.64-1.69
1.746-1.763
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.036
0.007-0.013
1.9 Clarity
Transparent
Transparent

Peridot and Chrysoberyl Optic Character

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

Peridot and Chrysoberyl Transparency

Similar to their colors, Peridot 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, Peridot is Transparent while Peridot is Transparent in appearance.