×

Omphacite
Omphacite

Erythrite
Erythrite



ADD
Compare
X
Omphacite
X
Erythrite

Omphacite and Erythrite Optical Properties

Optical Properties

Luster

Vitreous
Subadamantine, Pearly

Pleochroism

Weak: colorless -- very pale green -- very pale green
Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

TranslucentAnthony et al
-

Refractive Index

1.662-1.7231.626-1.629
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

TranslucentAnthony et al
-

Omphacite and Erythrite Optic Character

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

Omphacite and Erythrite Transparency

Similar to their colors, Omphacite 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, Omphacite is TranslucentAnthony et al while Omphacite is TranslucentAnthony et al in appearance.