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Papagoite
Papagoite

Covellite
Covellite



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Papagoite
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Covellite

Papagoite and Covellite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Resinous
1.2 Pleochroism
Trichroic
Marked
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
1.5 Refractive Index
1.607-1.6721.45-2.62
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Hexagonal
1.8 Birefringence
0.065Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
OpaqueAnthony et al

Papagoite and Covellite Optic Character

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

Papagoite and Covellite Transparency

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