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Tanzanite and Xonotlite Optical Properties


Xonotlite and Tanzanite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Silky   

Pleochroism
Present   
Not Available   

Dispersion
0.03   
14
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
Gems, Sixth Edition (2006)   

Refractive Index
1.685-1.707   
1.581-1.593   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
monoclinic   

Birefringence
0.006-0.018   
0.010   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Gems   

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Tanzanite and Xonotlite Optic Character

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

Similar to their colors, Tanzanite and Xonotlite 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, Tanzanite is Translucent, Transparent and Transparent to translucent while Tanzanite is Translucent, Transparent and Transparent to translucent in appearance.

Semi Precious

Semi Precious


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