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Covellite
Covellite

Jadeite
Jadeite



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Covellite
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Jadeite

Covellite and Jadeite Optical Properties

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Optical Properties

Luster

Resinous
Pearly

Pleochroism

Marked
-

Dispersion

0.080.01
0.005 1
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Transparency

OpaqueAnthony et al
Translucent

Refractive Index

1.45-2.621.652-1.688
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
monoclinic

Birefringence

-99990.013-0.020
0 0.296
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Clarity

OpaqueAnthony et al
Translucent

Covellite and Jadeite Optic Character

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

Covellite and Jadeite Transparency

Similar to their colors, Covellite and Jadeite 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, Covellite is OpaqueAnthony et al while Covellite is OpaqueAnthony et al in appearance.