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Sinhalite
Sinhalite

Vesuvianite
Vesuvianite



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Sinhalite
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Vesuvianite

Sinhalite and Vesuvianite Optical Properties

Optical Properties

Luster

-
Vitreous, Resinous

Pleochroism

Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
slight in colored varieties

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.665-1.7121.703-1.752
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.036-0.0420.004-0.006
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Sinhalite and Vesuvianite Optic Character

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

Sinhalite and Vesuvianite Transparency

Similar to their colors, Sinhalite 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, Sinhalite is while Sinhalite is in appearance.