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Aquamarine and Covellite Optical Properties


Covellite and Aquamarine Optical Properties


Optical Properties

Luster
Vitreous   
Resinous   

Pleochroism
Not Available   
Marked   

Dispersion
0.01   
26
Not Available   

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

Refractive Index
1.570-1.592   
1.45-2.62   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Hexagonal   

Birefringence
0.005-0.009   
Not Available   

Clarity
Transparent to translucent   
OpaqueAnthony et al   

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Aquamarine and Covellite Optic Character

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

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Aquamarine and Covellite Transparency

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

Gems for Aquarius

Gems for Aquarius


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