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Forsterite
Forsterite

Parisite
Parisite



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Forsterite
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Parisite

Forsterite and Parisite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

colorless.
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.635-1.6711.671-1.771
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.033-0.0420.099-0.100
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Forsterite and Parisite Optic Character

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

Similar to their colors, Forsterite and Parisite 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.