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Fibrolite
Fibrolite

Benitoite
Benitoite



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Fibrolite
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Benitoite

Fibrolite and Benitoite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

DistinctArthur Thomas
O = colorless; E = purple

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.658-1.6781.757-1.804
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

-99990.047
0 0.296
👆🏻

Clarity

Transparent
Transparent

Fibrolite and Benitoite Optic Character

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

Similar to their colors, Fibrolite and Benitoite 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.