Fluorite and Rosasite Optical Properties

Fluorite

Rosasite

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Optical Properties

Luster

Vitreous

Silky, Vitreous

Pleochroism

Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue

Dispersion

0.010.03

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Refractive Index

1.432-1.4361.672-1.688

1 3.25

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Optic Character

Crystal System

cubic

monoclinic

Birefringence

-99990.139-0.143

0 0.296

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Clarity

Transparent

Fluorite and Rosasite Optic Character

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

Similar to their colors, Fluorite and Rosasite 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.