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Nickeline and Carnelian Optical Properties


Carnelian and Nickeline Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Strong (reflected light)   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Not Available   
Translucent, Transparent to nearly opaque   

Refractive Index
Not Available   
1.535-1.539   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Trigonal   

Birefringence
Not Available   
0.003-0.009   

Clarity
Not Available   
Translucent   

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<< Physical Properties

Nickeline and Carnelian Optic Character

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

Similar to their colors, Nickeline 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, Nickeline is Not Available while Nickeline is Not Available in appearance.

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