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Friedelite
Friedelite

Omphacite
Omphacite



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Friedelite
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Omphacite

Friedelite and Omphacite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Weak: colorless -- very pale green -- very pale green

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Translucent
TranslucentAnthony et al

Refractive Index

1.627-1.6631.662-1.723
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
-

Birefringence

0.032-0.035-9999
0 0.296
👆🏻

Clarity

Translucent
TranslucentAnthony et al

Friedelite and Omphacite Optic Character

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

Friedelite and Omphacite Transparency

Similar to their colors, Friedelite and Omphacite 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, Friedelite is Translucent while Friedelite is Translucent in appearance.