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Legrandite
Legrandite

Friedelite
Friedelite



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Legrandite
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Friedelite

Legrandite and Friedelite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Colorless
-

Dispersion

0.030.04
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.702-1.7401.627-1.663
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.0600.032-0.035
0 0.296
👆🏻

Clarity

-
Translucent

Legrandite and Friedelite Optic Character

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

Legrandite and Friedelite Transparency

Similar to their colors, Legrandite 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, Legrandite is while Legrandite is in appearance.