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Cristinite
Cristinite

Covellite
Covellite



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Cristinite
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Covellite

Cristinite and Covellite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Resinous
1.2 Pleochroism
Not Available
Marked
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparentthegemden.com.au (2011)
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
1.5 Refractive Index
1.61-1.63
1.45-2.62
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Hexagonal
1.8 Birefringence
Not Available
Not Available
1.9 Clarity
Transparentthegemden.com.au (2011)
OpaqueAnthony et al

Cristinite and Covellite Optic Character

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

Cristinite and Covellite Transparency

Similar to their colors, Cristinite 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, Cristinite is Transparentthegemden.com.au (2011) while Cristinite is Transparentthegemden.com.au (2011) in appearance.