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Variscite
Variscite

Andalusite
Andalusite



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Variscite
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Andalusite

Variscite and Andalusite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Waxy
-
0.01
Translucent, Opaque . May be translucent when backlit on the edges.
1.560-1.594
-
Orthorhombic
0.031
Translucent
 
Vitreous, Greasy
strongly trichroic
0.02
Transparent, Translucent
1.627-1.650
-
Orthorhombic
0.009-0.010
Transparent

Variscite and Andalusite Optic Character

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

Variscite and Andalusite Transparency

Similar to their colors, Variscite and Andalusite 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 while Variscite is in appearance.