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Clinohumite
Clinohumite

Covellite
Covellite



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Clinohumite
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Covellite

Clinohumite and Covellite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Resinous
1.2 Pleochroism
Colorless
Marked
1.3 Dispersion
0.02NA
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
1.623-1.7281.45-2.62
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Hexagonal
1.8 Birefringence
0.028Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
OpaqueAnthony et al

Clinohumite and Covellite Optic Character

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

Clinohumite and Covellite Transparency

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