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Sugilite and Ametrine Optical Properties


Ametrine and Sugilite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Weak   
Not Available   

Dispersion
Not Available   
0.01   
27

Transparency
Translucent   
Transparent   

Refractive Index
1.607-1.612   
1.544-1.553   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Trigonal   

Birefringence
0.003   
0.009   

Clarity
Translucent   
Transparent   

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<< Physical Properties

Sugilite and Ametrine Optic Character

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

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

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