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Prase
Prase

Labradorite
Labradorite



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Prase
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Labradorite

Prase and Labradorite Optical Properties

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Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent, Translucent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.544-1.5531.554-1.573
1 3.25
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Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

0.0090.008-0.010
0 0.296
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Clarity

Transparent
Transparent

Prase and Labradorite Optic Character

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

Prase and Labradorite Transparency

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