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Cerussite
Cerussite

Covellite
Covellite



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Cerussite
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Covellite

Cerussite and Covellite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous, Resinous
Resinous
1.2 Pleochroism
AbsentWalter Schumann
Marked
1.3 Dispersion
0.06NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
1.5 Refractive Index
1.803-2.0781.45-2.62
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Hexagonal
1.8 Birefringence
0.273Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
OpaqueAnthony et al

Cerussite and Covellite Optic Character

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

Cerussite and Covellite Transparency

Similar to their colors, Cerussite 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, Cerussite is Translucent and Transparent while Cerussite is Translucent and Transparent in appearance.