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Magnesite and Obsidian Optical Properties


Obsidian and Magnesite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
NilArthur Thomas   
AbsentWalter Schumann   

Dispersion
Not Available   
0.01   
29

Transparency
Translucent   
Transparent, Translucent   

Refractive Index
1.509-1.720   
1.450-1.550   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Amorphous   

Birefringence
0.191   
Not Available   

Clarity
Translucent   
Transparent   

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Magnesite and Obsidian Optic Character

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

Similar to their colors, Magnesite and Obsidian 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, Magnesite is Translucent while Magnesite is Translucent in appearance.

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