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Uvite
Uvite

Cassiterite
Cassiterite



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Uvite
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Cassiterite

Uvite and Cassiterite Optical Properties

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Optical Properties

Luster

Vitreous
Adamantine, Greasy

Pleochroism

Pale yellow colorlessAnthony et al
Pleochroic haloes have been observed. Dichroic in yellow

Dispersion

0.020.07
0.005 1
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Transparency

Transparent
Transparent, Translucent

Refractive Index

1.614-1.6661.990-2.105
1 3.25
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Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

0.014-0.0320.096-0.098
0 0.296
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Clarity

Transparent
Transparent

Uvite and Cassiterite Optic Character

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

Uvite and Cassiterite Transparency

Similar to their colors, Uvite 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, Uvite is Transparent while Uvite is Transparent in appearance.