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Vesuvianite
Vesuvianite

Euclase
Euclase



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Vesuvianite
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Euclase

Vesuvianite and Euclase Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

slight in colored varieties
Weak: colorless-(greenish) yellow

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.703-1.7521.650-1.677
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

Birefringence

0.004-0.0060.019-0.025
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Vesuvianite and Euclase Optic Character

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

Similar to their colors, Vesuvianite and Euclase 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.