Fluorite and Axinite Optical Properties

Fluorite

Axinite

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Optical Properties

Luster

Vitreous

Pleochroism

Strong

Dispersion

0.010.02

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Refractive Index

1.432-1.4361.656-1.704

1 3.25

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Optic Character

Biaxial/+

Crystal System

cubic

Triclinic

Birefringence

-99990.009-0.012

0 0.296

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Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Fluorite and Axinite Optic Character

Fluorite and Axinite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Fluorite and Axinite 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 Axinite 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. Axinite has Biaxial/+ character.

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Fluorite and Axinite Transparency

Similar to their colors, Fluorite and Axinite 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.