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Periclase and Cassiterite Optical Properties


Cassiterite and Periclase Optical Properties


Optical Properties

Luster
Vitreous   
Adamantine, Greasy   

Pleochroism
Not Available   
Pleochroic haloes have been observed. Dichroic in yellow   

Dispersion
Not Available   
0.07   
6

Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references   
Transparent, Translucent   

Refractive Index
1.735-1.738   
1.990-2.105   

Optic Character
Not Available   
Not Available   

Crystal System
Isometric   
tetragonal   

Birefringence
Not Available   
0.096-0.098   

Clarity
TransparentWalter Schumann   
Transparent   

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Periclase and Cassiterite Optic Character

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

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Periclase and Cassiterite Transparency

Similar to their colors, Periclase 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, Periclase is Gemstones of the world (2001) More from other references and TransparentWalter Schumann while Periclase is Gemstones of the world (2001) More from other references and TransparentWalter Schumann in appearance.

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