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Ceylonite and Sugilite Optical Properties


Sugilite and Ceylonite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Absent   
Weak   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
Translucent   

Refractive Index
1.770-1.780   
1.607-1.612   

Optic Character
Not Available   
Not Available   

Crystal System
Isometric   
Hexagonal   

Birefringence
Not Available   
0.003   

Clarity
Transparent   
Translucent   

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Ceylonite and Sugilite Optic Character

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

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

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