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Pezzottaite
Pezzottaite

Eudialyte
Eudialyte



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Pezzottaite
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Eudialyte

Pezzottaite and Eudialyte Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Moderate dichroic
Weak: O= colorless

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.598-1.6201.591-1.633
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Trigonal

Birefringence

0.008-0.0110.003-0.010
0 0.296
👆🏻

Clarity

Transparent
Translucent

Pezzottaite and Eudialyte Optic Character

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

Pezzottaite and Eudialyte Transparency

Similar to their colors, Pezzottaite and Eudialyte 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, Pezzottaite is Transparent while Pezzottaite is Transparent in appearance.