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Vesuvianite
Vesuvianite

Jet lignite
Jet lignite



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Vesuvianite
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Jet lignite

Vesuvianite and Jet lignite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
-

Pleochroism

slight in colored varieties
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.703-1.752-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
-

Birefringence

0.004-0.006-9999
0 0.296
👆🏻

Clarity

-
-

Vesuvianite and Jet lignite Optic Character

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

Similar to their colors, Vesuvianite and Jet lignite 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.