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Afghanite and Vesuvianite Optical Properties


Vesuvianite and Afghanite Optical Properties


Optical Properties

Luster
Vitreous  
Vitreous, Resinous  

Pleochroism
-  
slight in colored varieties  

Dispersion
0.02  
99+
0.03  
99+

Transparency
Transparent  
-  

Refractive Index
1.523  
1.703-1.752  

Optic Character
-  
-  

Crystal System
Trigonal  
tetragonal  

Birefringence
0.006  
0.004-0.006  

Clarity
Transparent  
-  

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Afghanite and Vesuvianite Optic Character

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

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Afghanite and Vesuvianite Transparency

Similar to their colors, Afghanite 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, Afghanite is Transparent while Afghanite is Transparent in appearance.

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