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Covellite and Chrysotile Optical Properties


Chrysotile and Covellite Optical Properties


Optical Properties

Luster
Resinous   
Silky   

Pleochroism
Marked   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references   
Not Available   

Refractive Index
1.45-2.62   
1.530-1.575   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Monoclinic : clinochrysotile (most common)   

Birefringence
Not Available   
0.001   

Clarity
OpaqueAnthony et al   
Not Available   

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Covellite and Chrysotile Optic Character

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

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Covellite and Chrysotile Transparency

Similar to their colors, Covellite and Chrysotile 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.

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