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Variscite
Variscite

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Variscite and Proustite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Waxy
Adamantine
1.2 Pleochroism
MissingWalter Schumann
Moderate; cochineal-red to blood-red
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references
1.5 Refractive Index
1.560-1.594
2.792-3.087
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.031
0.295-0.296
1.9 Clarity
Translucent
OpaqueUlrich Henn and Claudio C. Milisenda

Variscite and Proustite Optic Character

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

Similar to their colors, Variscite and Proustite 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.