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Jadeite
Jadeite

Covellite
Covellite



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Jadeite
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Covellite

Jadeite and Covellite Optical Properties

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Optical Properties

Luster

Pearly
Resinous

Pleochroism

-
Marked

Dispersion

0.010.08
0.005 1
👆🏻

Transparency

Translucent
OpaqueAnthony et al

Refractive Index

1.652-1.6881.45-2.62
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

0.013-0.020-9999
0 0.296
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Clarity

Translucent
OpaqueAnthony et al

Jadeite and Covellite Optic Character

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

Jadeite and Covellite Transparency

Similar to their colors, Jadeite and Covellite 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, Jadeite is Translucent while Jadeite is Translucent in appearance.