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Eosphorite
Eosphorite

Covellite
Covellite



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Eosphorite
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Covellite

Eosphorite and Covellite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Resinous

Pleochroism

Visible: X = yellow; Y = pink; Z = pale pink to colorless
Marked

Dispersion

0.010.08
0.005 1
👆🏻

Transparency

Transparent
OpaqueAnthony et al

Refractive Index

1.639-1.6721.45-2.62
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Hexagonal

Birefringence

0.029-0.032-9999
0 0.296
👆🏻

Clarity

Transparent
OpaqueAnthony et al

Eosphorite and Covellite Optic Character

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

Eosphorite and Covellite Transparency

Similar to their colors, Eosphorite 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, Eosphorite is Transparent while Eosphorite is Transparent in appearance.