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Covellite
Covellite

Ruby
Ruby



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Covellite
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Ruby

Covellite and Ruby Optical Properties

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1 Optical Properties
1.1 Luster
Resinous
Vitreous, Adamantine, Vitreous, Adamantine
1.2 Pleochroism
Marked
Strong: purplish-red
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
1.45-2.621.762-1.778
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Trigonal
1.8 Birefringence
Not Available0.008
Achroite
0 0.296
1.9 Clarity
OpaqueAnthony et al
Transparent

Covellite and Ruby Optic Character

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

Similar to their colors, Covellite and Ruby 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 Handbook of mineralogy (2001) More from other references and OpaqueAnthony et al while Covellite is Handbook of mineralogy (2001) More from other references and OpaqueAnthony et al in appearance.