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Tortoiseshell and Vesuvianite Idocrase Optical Properties


Vesuvianite Idocrase and Tortoiseshell Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
0.02   
20

Transparency
Gemmological Tables (2004)   
Transparent   

Refractive Index
1.540-1.560   
1.700-1.725   

Optic Character
Not Available   
Uniaxial/-   

Crystal System
Not Available   
Not Available   

Birefringence
Not Available   
0.002-0.012   

Clarity
OpaqueUlrich Henn and Claudio C. Milisenda   
Transparent   

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Tortoiseshell and Vesuvianite Idocrase Optic Character

Tortoiseshell and Vesuvianite Idocrase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Tortoiseshell and Vesuvianite Idocrase 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 Tortoiseshell and Vesuvianite Idocrase 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. Vesuvianite Idocrase has Uniaxial/- character.

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Tortoiseshell and Vesuvianite Idocrase Transparency

Similar to their colors, Tortoiseshell and Vesuvianite Idocrase 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, Tortoiseshell is Gemmological Tables (2004) while Tortoiseshell is Gemmological Tables (2004) in appearance.

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