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Ammolite
Ammolite

Thomsonite
Thomsonite



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Ammolite
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Thomsonite

Ammolite and Thomsonite Optical Properties

Optical Properties

Luster

Silky, Vitreous
Vitreous, Pearly

Pleochroism

None
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.520-1.6701.510-1.550
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.135-0.1450.015-0.020
0 0.296
👆🏻

Clarity

-
Translucent

Ammolite and Thomsonite Optic Character

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

Ammolite and Thomsonite Transparency

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