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Hureaulite
Hureaulite

Variscite
Variscite



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Hureaulite
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Variscite

Hureaulite and Variscite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Greasy
Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al
0.02
Transparent
1.647-1.667
-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
0.012
Transparent
 
Vitreous, Waxy
-
0.01
Translucent, Opaque . May be translucent when backlit on the edges.
1.560-1.594
-
Orthorhombic
0.031
Translucent

Hureaulite and Variscite Optic Character

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

Hureaulite and Variscite Transparency

Similar to their colors, Hureaulite 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, Hureaulite is while Hureaulite is in appearance.