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Lazurite
Lazurite

Axinite
Axinite



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Lazurite
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Axinite

Lazurite and Axinite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Strong

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.5001.656-1.704
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Isometric
Triclinic

Birefringence

-99990.009-0.012
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Lazurite and Axinite Optic Character

Lazurite and Axinite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Lazurite and Axinite 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 Lazurite and Axinite 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. Axinite has Biaxial/+ character.

Lazurite and Axinite Transparency

Similar to their colors, Lazurite and Axinite 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, Lazurite is while Lazurite is in appearance.