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Elbaite
Elbaite

Friedelite
Friedelite



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Elbaite
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Friedelite

Elbaite and Friedelite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Pale green
-

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.614-1.6661.627-1.663
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.014-0.0320.032-0.035
0 0.296
👆🏻

Clarity

Transparent
Translucent

Elbaite and Friedelite Optic Character

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

Elbaite and Friedelite Transparency

Similar to their colors, Elbaite 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, Elbaite is Transparent while Elbaite is Transparent in appearance.