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Sardonyx
Sardonyx

Pectolite
Pectolite



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Sardonyx
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Pectolite

Sardonyx and Pectolite Optical Properties

Optical Properties

Luster

-
Silky

Pleochroism

-
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.530-1.5431.595-1.645
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

0.008-0.0100.028-0.038
0 0.296
👆🏻

Clarity

Translucent
Transparent

Sardonyx and Pectolite Optic Character

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

Similar to their colors, Sardonyx and Pectolite 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.