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Andesine and Vesuvianite Optical Properties


Vesuvianite and Andesine Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Resinous   

Pleochroism
colorless.   
slight in colored varieties   

Dispersion
0.70   
2
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
Not Available   

Refractive Index
1.543-1.564   
1.703-1.752   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Triclinic   
tetragonal   

Birefringence
0.007-0.011   
0.004-0.006   

Clarity
Transparent   
Not Available   

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Andesine and Vesuvianite Optic Character

Andesine and Vesuvianite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Andesine and Vesuvianite 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 Andesine and Vesuvianite 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. Andesine has Biaxial/+ character.

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Andesine and Vesuvianite Transparency

Similar to their colors, Andesine and Vesuvianite 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, Andesine is Translucent, Transparent and Transparent to translucent while Andesine is Translucent, Transparent and Transparent to translucent in appearance.

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