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Ammolite
Ammolite

Selenite
Selenite



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Ammolite
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Selenite

Ammolite and Selenite Optical Properties

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Optical Properties

Luster

Silky, Vitreous
Vitreous

Pleochroism

None
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.520-1.670-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
monoclinic

Birefringence

0.135-0.145-9999
0 0.296
👆🏻

Clarity

-
Transparent

Ammolite and Selenite Optic Character

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

Similar to their colors, Ammolite and Selenite 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.