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Liddicoatite
Liddicoatite

Sardonyx
Sardonyx



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Liddicoatite
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Sardonyx

Liddicoatite and Sardonyx Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Strong: dark brown light brownAnthony et al
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent
Translucent

Refractive Index

-99991.530-1.543
1 3.25
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Optic Character

-
-

Crystal System

-
-

Birefringence

-99990.008-0.010
0 0.296
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Clarity

Transparent
Translucent

Liddicoatite and Sardonyx Optic Character

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

Liddicoatite and Sardonyx Transparency

Similar to their colors, Liddicoatite 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, Liddicoatite is Transparent while Liddicoatite is Transparent in appearance.