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Ammolite
Ammolite

Amethyst
Amethyst



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Ammolite
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Amethyst

Ammolite and Amethyst Optical Properties

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Optical Properties

Luster

Silky, Vitreous
Vitreous

Pleochroism

None
None

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent, Transparent to translucent

Refractive Index

1.520-1.6701.544-1.553
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Trigonal

Birefringence

0.135-0.1450.009
0 0.296
👆🏻

Clarity

-
Transparent

Ammolite and Amethyst Optic Character

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

Similar to their colors, Ammolite and Amethyst 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.