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Vesuvianite and Ammolite Optical Properties


Ammolite and Vesuvianite Optical Properties


Optical Properties

Luster
Vitreous, Resinous   
Silky, Vitreous   

Pleochroism
slight in colored varieties   
None   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Not Available   

Refractive Index
1.703-1.752   
1.520-1.670   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Trigonal   

Birefringence
0.004-0.006   
0.135-0.145   

Clarity
Not Available   
Not Available   

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<< Physical Properties

Vesuvianite and Ammolite Optic Character

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

Similar to their colors, Vesuvianite and Ammolite 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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Brown Gemstones


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