Labradorite and Brookite Optical Properties

Labradorite

Brookite

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Optical Properties

Luster

Vitreous, Pearly

Adamantine

Pleochroism

Very weak

Dispersion

0.010.20

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Refractive Index

1.554-1.5732.583-2.741

1 3.25

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Optic Character

Crystal System

Triclinic

Orthorhombic

Birefringence

0.008-0.0100.117

0 0.296

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Clarity

Transparent

Labradorite and Brookite Optic Character

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

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Labradorite and Brookite Transparency

Similar to their colors, Labradorite and Brookite 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, Labradorite is Transparent, Translucent and Transparent to translucent while Labradorite is Transparent, Translucent and Transparent to translucent in appearance.