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Spodumene
Spodumene

Smithsonite
Smithsonite



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Spodumene
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Smithsonite

Spodumene and Smithsonite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Strong in kunzite: α-purple
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.657-1.6811.620-1.850
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.014-0.0180.223-0.227
0 0.296
👆🏻

Clarity

-
Translucent

Spodumene and Smithsonite Optic Character

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

Spodumene and Smithsonite Transparency

Similar to their colors, Spodumene and Smithsonite 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, Spodumene is Transparent while Spodumene is Transparent in appearance.