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Legrandite
Legrandite

Annabergite
Annabergite



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Legrandite
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Annabergite

Legrandite and Annabergite Optical Properties

Optical Properties

Luster

Vitreous
Subadamantine, Pearly

Pleochroism

Colorless
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.702-1.7401.622
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.0600.065
0 0.296
👆🏻

Clarity

-
-

Legrandite and Annabergite Optic Character

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

Similar to their colors, Legrandite and Annabergite 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.