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Vesuvianite
Vesuvianite

Erythrite
Erythrite



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Vesuvianite
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Erythrite

Vesuvianite and Erythrite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Subadamantine, Pearly

Pleochroism

slight in colored varieties
Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.703-1.7521.626-1.629
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
monoclinic

Birefringence

0.004-0.006-9999
0 0.296
👆🏻

Clarity

-
-

Vesuvianite and Erythrite Optic Character

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

Similar to their colors, Vesuvianite and Erythrite 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.