×

Prehnite
Prehnite

Vesuvianite
Vesuvianite



ADD
Compare
X
Prehnite
X
Vesuvianite

Prehnite and Vesuvianite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

-
slight in colored varieties

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.611-1.6731.703-1.752
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.021-0.0330.004-0.006
0 0.296
👆🏻

Clarity

TranslucentHerve Nicolas Lazzarelli
-

Prehnite and Vesuvianite Optic Character

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

Prehnite and Vesuvianite Transparency

Similar to their colors, Prehnite 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, Prehnite is Translucent while Prehnite is Translucent in appearance.