Labradorite and Quartz Optical Properties

Labradorite

Quartz

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Optical Properties

Luster

Vitreous, Pearly

Vitreous

Pleochroism

None

Dispersion

0.010.01

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Refractive Index

1.554-1.5731.544-1.553

1 3.25

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Optic Character

Crystal System

Triclinic

Trigonal

Birefringence

0.008-0.0100.009

0 0.296

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Clarity

Transparent

Opaque

Labradorite and Quartz Optic Character

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

Similar to their colors, Labradorite and Quartz 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.