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Vesuvianite and Andesine Optical Properties


Andesine and Vesuvianite Optical Properties


Optical Properties

Luster
Vitreous, Resinous   
Vitreous   

Pleochroism
slight in colored varieties   
colorless.   

Dispersion
Not Available   
0.70   
2

Transparency
Not Available   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.703-1.752   
1.543-1.564   

Optic Character
Not Available   
Biaxial/+   

Crystal System
tetragonal   
Triclinic   

Birefringence
0.004-0.006   
0.007-0.011   

Clarity
Not Available   
Transparent   

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Vesuvianite and Andesine Optic Character

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

Similar to their colors, Vesuvianite and Andesine 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, Vesuvianite is Not Available while Vesuvianite is Not Available in appearance.

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