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Sardonyx
Sardonyx

Variscite
Variscite



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Sardonyx
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Variscite

Sardonyx and Variscite Optical Properties

Optical Properties

Luster

-
Vitreous, Waxy

Pleochroism

-
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

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

Refractive Index

1.530-1.5431.560-1.594
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.008-0.0100.031
0 0.296
👆🏻

Clarity

Translucent
Translucent

Sardonyx and Variscite Optic Character

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

Sardonyx and Variscite Transparency

Similar to their colors, Sardonyx 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, Sardonyx is Translucent while Sardonyx is Translucent in appearance.