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Smithsonite
Smithsonite

Annabergite
Annabergite



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Smithsonite
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Annabergite

Smithsonite and Annabergite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Subadamantine, Pearly

Pleochroism

-
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.620-1.8501.622
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
monoclinic

Birefringence

0.223-0.2270.065
0 0.296
👆🏻

Clarity

Translucent
-

Smithsonite and Annabergite Optic Character

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

Similar to their colors, Smithsonite and Annabergite 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.