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Mimetite and Hercynite Optical Properties


Hercynite and Mimetite Optical Properties


Optical Properties

Luster
Resinous, Subadamantine   
Vitreous   

Pleochroism
Weak   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Translucent   

Refractive Index
2.106-2.263   
1.80-1.83   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m   

Birefringence
0.019   
Not Available   

Clarity
Translucent   
Translucent   

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Mimetite and Hercynite Optic Character

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

Similar to their colors, Mimetite and Hercynite 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, Mimetite is Translucent while Mimetite is Translucent in appearance.

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