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Grossular
Grossular

Lazulite
Lazulite



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Grossular
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Lazulite

Grossular and Lazulite Optical Properties

Optical Properties

Luster

Greasy, Vitreous
-

Pleochroism

None
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.730-1.7601.604-1.646
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
monoclinic

Birefringence

0.0200.031-0.036
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Grossular and Lazulite Optic Character

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

Grossular and Lazulite Transparency

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