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Variscite and Forsterite Optical Properties


Forsterite and Variscite Optical Properties


Optical Properties

Luster
Vitreous, Waxy   
Vitreous   

Pleochroism
MissingWalter Schumann   
colorless.   

Dispersion
Not Available   
Not Available   

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

Refractive Index
1.560-1.594   
1.635-1.671   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Orthorhombic   

Birefringence
0.031   
0.033-0.042   

Clarity
Translucent   
Transparent   

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Variscite and Forsterite Optic Character

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

Similar to their colors, Variscite and Forsterite 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, Variscite is Opaque . May be translucent when backlit on the edges. and Translucent while Variscite is Opaque . May be translucent when backlit on the edges. and Translucent in appearance.

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