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Vesuvianite
Vesuvianite

Lazulite
Lazulite



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Vesuvianite
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Lazulite

Vesuvianite and Lazulite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
-

Pleochroism

slight in colored varieties
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.703-1.7521.604-1.646
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
monoclinic

Birefringence

0.004-0.0060.031-0.036
0 0.296
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Clarity

-
Transparent

Vesuvianite and Lazulite Optic Character

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

Vesuvianite and Lazulite Transparency

Similar to their colors, Vesuvianite 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, Vesuvianite is while Vesuvianite is in appearance.