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Fibrolite and Prasiolite Optical Properties


Prasiolite and Fibrolite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
DistinctArthur Thomas   
Very weak: light green pale greenWalter Schumann   

Dispersion
0.02   
24
0.01   
27

Transparency
Transparent   
Transparent, Translucent   

Refractive Index
1.658-1.678   
1.544-1.553   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Trigonal   

Birefringence
Not Available   
0.009   

Clarity
Transparent   
Transparent   

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Fibrolite and Prasiolite Optic Character

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

Similar to their colors, Fibrolite and Prasiolite 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, Fibrolite is Transparent while Fibrolite is Transparent in appearance.

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