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Smithsonite
Smithsonite

Shigaite
Shigaite



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Smithsonite
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Shigaite

Smithsonite and Shigaite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
Distinct

Dispersion

0.010.05
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.620-1.8501.546
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Trigonal

Birefringence

0.223-0.227-9999
0 0.296
👆🏻

Clarity

Translucent
-

Smithsonite and Shigaite Optic Character

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

Similar to their colors, Smithsonite and Shigaite 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.