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Variscite
Variscite

Cassiterite
Cassiterite



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Variscite and Cassiterite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Waxy
Adamantine, Greasy
1.2 Pleochroism
MissingWalter Schumann
Pleochroic haloes have been observed. Dichroic in yellow
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.07
Rank: 6 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
Transparent, Translucent
1.5 Refractive Index
1.560-1.594
1.990-2.105
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
tetragonal
1.8 Birefringence
0.031
0.096-0.098
1.9 Clarity
Translucent
Transparent

Variscite and Cassiterite Optic Character

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

Similar to their colors, Variscite and Cassiterite 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.