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Jet
Jet

Phosgenite
Phosgenite



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Jet
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Phosgenite

Jet and Phosgenite Optical Properties

Jet
Jet
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Optical Properties

Luster

Waxy
Adamantine

Pleochroism

-
Weakly pleochroic with O reddish and E greenish in thick sections.

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.640-1.6802.117-2.145
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

-99990.027
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Jet and Phosgenite Optic Character

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

Similar to their colors, Jet and Phosgenite 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.