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Ammolite
Ammolite

Friedelite
Friedelite



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Ammolite
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Friedelite

Ammolite and Friedelite Optical Properties

Optical Properties

Luster

Silky, Vitreous
-

Pleochroism

None
-

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.520-1.6701.627-1.663
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m

Birefringence

0.135-0.1450.032-0.035
0 0.296
👆🏻

Clarity

-
Translucent

Ammolite and Friedelite Optic Character

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

Similar to their colors, Ammolite and Friedelite 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.