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Jet
Jet

Plumbogummite
Plumbogummite



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Jet
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Plumbogummite

Jet and Plumbogummite Optical Properties

Jet
Jet
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Optical Properties

Luster

Waxy
Resinous

Pleochroism

-
None

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.640-1.6801.653-1.688
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
-

Jet and Plumbogummite Optic Character

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

Jet and Plumbogummite Transparency

Similar to their colors, Jet and Plumbogummite 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.