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Lazurite and Carnelian Optical Properties


Carnelian and Lazurite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Not Available   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Gemmological Tables (2004) More from other references   
Translucent, Transparent to nearly opaque   

Refractive Index
1.500   
1.535-1.539   

Optic Character
Not Available   
Not Available   

Crystal System
Isometric   
Trigonal   

Birefringence
Not Available   
0.003-0.009   

Clarity
Gemmological Tables (2004) More from other references   
Translucent   

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Lazurite and Carnelian Optic Character

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

Similar to their colors, Lazurite and Carnelian 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, Lazurite is Gemmological Tables (2004) More from other references while Lazurite is Gemmological Tables (2004) More from other references in appearance.

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