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Cassiterite and Kainite Optical Properties


Kainite and Cassiterite Optical Properties


Optical Properties

Luster
Adamantine, Greasy   
Vitreous   

Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow   
Visible: X = violet   

Dispersion
0.07   
6
Not Available   

Transparency
Transparent, Translucent   
Not Available   

Refractive Index
1.990-2.105   
1.494   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
monoclinic   

Birefringence
0.096-0.098   
0.022   

Clarity
Transparent   
Not Available   

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Cassiterite and Kainite Optic Character

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

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Cassiterite and Kainite Transparency

Similar to their colors, Cassiterite and Kainite 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, Cassiterite is Translucent and Transparent while Cassiterite is Translucent and Transparent in appearance.

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