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Thomsonite
Thomsonite

Peridot
Peridot



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Thomsonite
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Peridot

Thomsonite and Peridot Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Greasy

Pleochroism

-
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.510-1.5501.64-1.69
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.015-0.0200.036
0 0.296
👆🏻

Clarity

Translucent
Transparent

Thomsonite and Peridot Optic Character

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

Thomsonite and Peridot Transparency

Similar to their colors, Thomsonite and Peridot 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, Thomsonite is Translucent while Thomsonite is Translucent in appearance.