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Legrandite
Legrandite

Brucite
Brucite



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Legrandite
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Brucite

Legrandite and Brucite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Colorless
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
TransparentMichael O’Donoghue

Refractive Index

1.702-1.7401.56-1.60
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.0600.010-0.020
0 0.296
👆🏻

Clarity

-
TransparentMichael O’Donoghue

Legrandite and Brucite Optic Character

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

Similar to their colors, Legrandite and Brucite 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.