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Fibrolite
Fibrolite

Ammolite
Ammolite



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Fibrolite
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Ammolite

Fibrolite and Ammolite Optical Properties

Optical Properties

Luster

-
Silky, Vitreous

Pleochroism

DistinctArthur Thomas
None

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.658-1.6781.520-1.670
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.135-0.145
0 0.296
👆🏻

Clarity

Transparent
-

Fibrolite and Ammolite Optic Character

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

Fibrolite and Ammolite Transparency

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