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Augelite
Augelite

Sardonyx
Sardonyx



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Augelite
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Sardonyx

Augelite and Sardonyx Optical Properties

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Optical Properties

Luster

Pearly
-

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.570-1.5911.530-1.543
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
-

Birefringence

0.020-0.0210.008-0.010
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Augelite and Sardonyx Optic Character

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

Augelite and Sardonyx Transparency

Similar to their colors, Augelite and Sardonyx 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, Augelite is while Augelite is in appearance.