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Fayalite and Fluorite Optical Properties


Fluorite and Fayalite Optical Properties


Optical Properties

Luster
Vitreous, Resinous   
Vitreous   

Pleochroism
Faint   
AbsentWalter Schumann   

Dispersion
Not Available   
0.01   
30

Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.827-1.879   
1.432-1.436   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
cubic   

Birefringence
0.042-0.051   
Not Available   

Clarity
TransparentAnthony et al   
Transparent   

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Fayalite and Fluorite Optic Character

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

Similar to their colors, Fayalite and Fluorite 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, Fayalite is Handbook of mineralogy (2001) and TransparentAnthony et al while Fayalite is Handbook of mineralogy (2001) and TransparentAnthony et al in appearance.

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