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Pumpellyite
Pumpellyite

Variscite
Variscite



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Pumpellyite
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Variscite

Pumpellyite and Variscite Optical Properties

Optical Properties

Luster

-
Vitreous, Waxy

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

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

Refractive Index

1.674-1.7641.560-1.594
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.014-0.0160.031
0 0.296
👆🏻

Clarity

OpaqueUlrich Henn and Claudio C. Milisenda
Translucent

Pumpellyite and Variscite Optic Character

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

Pumpellyite and Variscite Transparency

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