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Vishnevite
Vishnevite

Cassiterite
Cassiterite



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Vishnevite
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Cassiterite

Vishnevite and Cassiterite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Adamantine, Greasy
1.2 Pleochroism
Not Available
Pleochroic haloes have been observed. Dichroic in yellow
1.3 Dispersion
NA0.07
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent, Translucent
1.5 Refractive Index
1.490-1.5071.990-2.105
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
tetragonal
1.8 Birefringence
0.002-0.0120.096-0.098
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Vishnevite and Cassiterite Optic Character

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

Vishnevite and Cassiterite Transparency

Similar to their colors, Vishnevite 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, Vishnevite is Not Available while Vishnevite is Not Available in appearance.