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Legrandite
Legrandite

Parisite
Parisite



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Legrandite
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Parisite

Legrandite and Parisite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Colorless
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.702-1.7401.671-1.771
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.0600.099-0.100
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Legrandite and Parisite Optic Character

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

Similar to their colors, Legrandite and Parisite 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.