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Sugilite and Wulfenite Optical Properties


Wulfenite and Sugilite Optical Properties


Optical Properties

Luster
Vitreous   
Adamantine, Resinous   

Pleochroism
Weak   
Weak   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Transparent   

Refractive Index
1.607-1.612   
2.280-2.405   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
tetragonal   

Birefringence
0.003   
0.122   

Clarity
Translucent   
Transparent   

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Sugilite and Wulfenite Optic Character

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

Similar to their colors, Sugilite and Wulfenite 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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