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Sugilite and Aquamarine Optical Properties


Aquamarine and Sugilite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Weak   
Not Available   

Dispersion
Not Available   
0.01   
26

Transparency
Translucent   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.607-1.612   
1.570-1.592   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Hexagonal   

Birefringence
0.003   
0.005-0.009   

Clarity
Translucent   
Transparent to translucent   

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Sugilite and Aquamarine Optic Character

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

Similar to their colors, Sugilite and Aquamarine 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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