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Thomsonite
Thomsonite

Moonstone
Moonstone



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Thomsonite
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Moonstone

Thomsonite and Moonstone Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Pearly

Pleochroism

-
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Translucent
Transparent, Transparent to translucent

Refractive Index

1.510-1.5501.518-1.527
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

0.015-0.0200.006-0.007
0 0.296
👆🏻

Clarity

Translucent
Transparent

Thomsonite and Moonstone Optic Character

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

Similar to their colors, Thomsonite and Moonstone 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.