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Prasiolite and Variscite Optical Properties


Variscite and Prasiolite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Waxy   

Pleochroism
Very weak: light green pale greenWalter Schumann   
MissingWalter Schumann   

Dispersion
0.01   
27
Not Available   

Transparency
Transparent, Translucent   
Translucent, Opaque . May be translucent when backlit on the edges.   

Refractive Index
1.544-1.553   
1.560-1.594   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Orthorhombic   

Birefringence
0.009   
0.031   

Clarity
Transparent   
Translucent   

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Prasiolite and Variscite Optic Character

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

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

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