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Paraiba
Paraiba

Variscite
Variscite



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Paraiba
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Variscite

Paraiba and Variscite Optical Properties

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Optical Properties

Luster

-
Vitreous, Waxy

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
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Transparency

-
Translucent, Opaque . May be translucent when backlit on the edges.

Refractive Index

1.618-1.6431.560-1.594
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.031
0 0.296
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Clarity

-
Translucent

Paraiba and Variscite Optic Character

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

Paraiba and Variscite Transparency

Similar to their colors, Paraiba and Variscite 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, Paraiba is while Paraiba is in appearance.