Labradorite and Seraphinite Optical Properties

Labradorite

Seraphinite

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Optical Properties

Luster

Vitreous, Pearly

Pearly, Greasy

Pleochroism

Dispersion

0.010.01

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Transparent

Refractive Index

1.554-1.5731.571-1.597

1 3.25

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Optic Character

Biaxial/+

Crystal System

Triclinic

Birefringence

0.008-0.010-9999

0 0.296

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Clarity

Transparent

Labradorite and Seraphinite Optic Character

Labradorite and Seraphinite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Labradorite and Seraphinite 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 Seraphinite 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. Seraphinite has Biaxial/+ character.

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Labradorite and Seraphinite Transparency

Similar to their colors, Labradorite and Seraphinite 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.