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Forsterite
Forsterite

Smithsonite
Smithsonite



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Forsterite
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Smithsonite

Forsterite and Smithsonite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

colorless.
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.635-1.6711.620-1.850
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.033-0.0420.223-0.227
0 0.296
👆🏻

Clarity

Transparent
Translucent

Forsterite and Smithsonite Optic Character

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

Forsterite and Smithsonite Transparency

Similar to their colors, Forsterite 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, Forsterite is Transparent while Forsterite is Transparent in appearance.