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Amber and Covellite Optical Properties


Covellite and Amber Optical Properties


Optical Properties

Luster
Resinous   
Resinous   

Pleochroism
AbsentWalter Schumann   
Marked   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references   

Refractive Index
1.539-1.545   
1.45-2.62   

Optic Character
Not Available   
Not Available   

Crystal System
Amorphous   
Hexagonal   

Birefringence
Not Available   
Not Available   

Clarity
Transparent   
OpaqueAnthony et al   

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<< Physical Properties

Amber and Covellite Optic Character

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

Amber and Covellite Transparency

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

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