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Brazilianite
Brazilianite

Wavellite
Wavellite



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Brazilianite
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Wavellite

Brazilianite and Wavellite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Resinous, Pearly

Pleochroism

Very weakWalter Schumann
Weak

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.602-1.6251.518-1.561
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.019-0.0210.025
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Brazilianite and Wavellite Optic Character

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

Similar to their colors, Brazilianite and Wavellite 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.