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Verdelite
Verdelite

Friedelite
Friedelite



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Verdelite
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Friedelite

Verdelite and Friedelite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
Strong: dark green yellow
0.02
Transparent, Translucent
1.614-1.666
-
-
0.014-0.040
Transparent
 
-
-
0.04
Translucent
1.627-1.663
-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
0.032-0.035
Translucent

Verdelite and Friedelite Optic Character

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

Verdelite and Friedelite Transparency

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