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Verdelite and Lazulite Optical Properties


Lazulite and Verdelite Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Strong: dark green yellow   
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli   

Dispersion
0.02   
22
0.01   
26

Transparency
Transparent, Translucent   
Transparent, Translucent   

Refractive Index
1.614-1.666   
1.604-1.646   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
monoclinic   

Birefringence
0.014-0.040   
0.031-0.036   

Clarity
Transparent   
Transparent   

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Verdelite and Lazulite Optic Character

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

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Verdelite and Lazulite Transparency

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

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Green Gemstones


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