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Smithsonite
Smithsonite

Andradite
Andradite



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Smithsonite
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Andradite

Smithsonite and Andradite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Adamantine, Resinous

Pleochroism

-
-

Dispersion

0.010.06
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.620-1.8501.88-1.94
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
cubic

Birefringence

0.223-0.2270.057
0 0.296
👆🏻

Clarity

Translucent
Transparent

Smithsonite and Andradite Optic Character

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

Smithsonite and Andradite Transparency

Similar to their colors, Smithsonite and Andradite 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, Smithsonite is Translucent while Smithsonite is Translucent in appearance.