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Variscite
Variscite

Brazilianite
Brazilianite



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Variscite
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Brazilianite

Variscite and Brazilianite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Waxy
Vitreous
1.2 Pleochroism
MissingWalter Schumann
Very weakWalter Schumann
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.560-1.5941.602-1.625
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.0310.019-0.021
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Variscite and Brazilianite Optic Character

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

Variscite and Brazilianite Transparency

Similar to their colors, Variscite and Brazilianite 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, Variscite is Opaque . May be translucent when backlit on the edges. and Translucent while Variscite is Opaque . May be translucent when backlit on the edges. and Translucent in appearance.