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Moonstone
Moonstone

Legrandite
Legrandite



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Moonstone
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Legrandite

Moonstone and Legrandite Optical Properties

Optical Properties

Luster

Pearly
Vitreous

Pleochroism

-
Colorless

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent, Transparent to translucent
-

Refractive Index

1.518-1.5271.702-1.740
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.006-0.0070.060
0 0.296
👆🏻

Clarity

Transparent
-

Moonstone and Legrandite Optic Character

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

Moonstone and Legrandite Transparency

Similar to their colors, Moonstone and Legrandite 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, Moonstone is Transparent and Transparent to translucent while Moonstone is Transparent and Transparent to translucent in appearance.