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Fluor buergerite
Fluor buergerite

Sillimanite
Sillimanite



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Fluor buergerite
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Sillimanite

Fluor buergerite and Sillimanite Optical Properties

Optical Properties

Luster

-
Vitreous, Subadamantine, Silky

Pleochroism

-
Colourless to pale brown to yellow

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

-99991.653-1.685
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.020-0.022
0 0.296
👆🏻

Clarity

-
Transparent

Fluor buergerite and Sillimanite Optic Character

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

Fluor buergerite and Sillimanite Transparency

Similar to their colors, Fluor buergerite and Sillimanite 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, Fluor buergerite is while Fluor buergerite is in appearance.