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Lazulite
Lazulite

Chrysoberyl
Chrysoberyl



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Lazulite
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Chrysoberyl

Lazulite and Chrysoberyl Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
X = red; Y = yellow-orange; Z = emerald-green
1.3 Dispersion
0.010.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.604-1.6461.746-1.763
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.031-0.0360.007-0.013
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Lazulite and Chrysoberyl Optic Character

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

Lazulite and Chrysoberyl Transparency

Similar to their colors, Lazulite 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, Lazulite is Translucent and Transparent while Lazulite is Translucent and Transparent in appearance.