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Vesuvianite
Vesuvianite

Pezzottaite
Pezzottaite



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Vesuvianite
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Pezzottaite

Vesuvianite and Pezzottaite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

slight in colored varieties
Moderate dichroic

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.703-1.7521.598-1.620
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Hexagonal

Birefringence

0.004-0.0060.008-0.011
0 0.296
👆🏻

Clarity

-
Transparent

Vesuvianite and Pezzottaite Optic Character

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

Similar to their colors, Vesuvianite and Pezzottaite 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.