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Covellite
Covellite

Chrysoprase
Chrysoprase



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Covellite and Chrysoprase Optical Properties

1 Optical Properties
1.1 Luster
Resinous
Vitreous, Vitreous, Waxy
1.2 Pleochroism
Marked
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Translucent, Translucent, Opaque, Translucent to nearly opaque
1.5 Refractive Index
1.45-2.62
1.530-1.543
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Trigonal
1.8 Birefringence
Not Available
0.004
1.9 Clarity
OpaqueAnthony et al
Translucent

Covellite and Chrysoprase Optic Character

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

Similar to their colors, Covellite and Chrysoprase 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.