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Smithsonite
Smithsonite

Hibonite
Hibonite



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Smithsonite
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Hibonite

Smithsonite and Hibonite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
O = brownish gray; E = gray

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.620-1.8501.79-1.807
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Hexagonal

Birefringence

0.223-0.227-9999
0 0.296
👆🏻

Clarity

Translucent
-

Smithsonite and Hibonite Optic Character

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

Similar to their colors, Smithsonite and Hibonite 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.