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Jet
Jet

Axinite
Axinite



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Jet
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Axinite

Jet and Axinite Optical Properties

Jet
Jet
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Optical Properties

Luster

Waxy
Vitreous

Pleochroism

-
Strong

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.640-1.6801.656-1.704
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

-
Triclinic

Birefringence

-99990.009-0.012
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Jet and Axinite Optic Character

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

Jet and Axinite Transparency

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