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Brazilianite
Brazilianite

Variscite
Variscite



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Brazilianite
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Variscite

Brazilianite and Variscite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Waxy

Pleochroism

Very weakWalter Schumann
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

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

Refractive Index

1.602-1.6251.560-1.594
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.019-0.0210.031
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Brazilianite and Variscite Optic Character

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

Brazilianite and Variscite Transparency

Similar to their colors, Brazilianite 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, Brazilianite is while Brazilianite is in appearance.