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Variscite
Variscite

Norbergite
Norbergite



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Variscite
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Norbergite

Variscite and Norbergite Optical Properties

Optical Properties

Luster

Vitreous, Waxy
Vitreous

Pleochroism

-
Pale yellow very pale yellow colorlessAnthony et al

Dispersion

0.010.02
0.005 1
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Transparency

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

Refractive Index

1.560-1.5941.563-1.593
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.031-9999
0 0.296
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Clarity

Translucent
Transparent

Variscite and Norbergite Optic Character

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

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