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Sonolite
Sonolite

Covellite
Covellite



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Sonolite
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Covellite

Sonolite and Covellite Optical Properties

Optical Properties

Luster

Vitreous
Resinous

Pleochroism

-
Marked

Dispersion

0.010.08
0.005 1
👆🏻

Transparency

TransparentAnthony et al
OpaqueAnthony et al

Refractive Index

1.763-1.7931.45-2.62
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

-9999-9999
0 0.296
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Clarity

TransparentAnthony et al
OpaqueAnthony et al

Sonolite and Covellite Optic Character

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

Sonolite and Covellite Transparency

Similar to their colors, Sonolite 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, Sonolite is TransparentAnthony et al while Sonolite is TransparentAnthony et al in appearance.