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Legrandite
Legrandite

Austinite
Austinite



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Legrandite
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Austinite

Legrandite and Austinite Optical Properties

Optical Properties

Luster

Vitreous
Subadamantine, Silky

Pleochroism

Colorless
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.702-1.7401.759
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.0600.024
0 0.296
👆🏻

Clarity

-
-

Legrandite and Austinite Optic Character

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

Similar to their colors, Legrandite and Austinite 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.