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Vesuvianite
Vesuvianite

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Vesuvianite
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Vesuvianite and Powellite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Greasy, Subadamantine

Pleochroism

slight in colored varieties
In deeply colored specimens: blue greenAnthony et al

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.703-1.7521.974-1.984
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
-

Birefringence

0.004-0.006-9999
0 0.296
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Clarity

-
Transparent

Vesuvianite and Powellite Optic Character

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

Similar to their colors, Vesuvianite and Powellite 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 while Vesuvianite is in appearance.