Fluorite and Barite Optical Properties

Fluorite

Barite

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Optical Properties

Luster

Vitreous

Pleochroism

colorless.

Dispersion

0.010.05

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Refractive Index

1.432-1.436-9999

1 3.25

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Optic Character

Crystal System

cubic

Orthorhombic

Birefringence

-9999-9999

0 0.296

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Clarity

Transparent

Fluorite and Barite Optic Character

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

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Fluorite and Barite Transparency

Similar to their colors, Fluorite and Barite 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, Fluorite is Transparent, Translucent and Transparent to translucent while Fluorite is Transparent, Translucent and Transparent to translucent in appearance.