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Ammolite
Ammolite

Caledonite
Caledonite



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Ammolite
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Caledonite

Ammolite and Caledonite Optical Properties

Optical Properties

Luster

Silky, Vitreous
Vitreous

Pleochroism

None
Weak

Dispersion

0.010.05
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.520-1.6701.818-1.909
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.135-0.1450.091
0 0.296
👆🏻

Clarity

-
Transparent

Ammolite and Caledonite Optic Character

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

Similar to their colors, Ammolite and Caledonite 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.