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Mimetite and Anhydrite Optical Properties


Anhydrite and Mimetite Optical Properties


Optical Properties

Luster
Resinous, Subadamantine   
Pearly, Greasy   

Pleochroism
Weak   
For violet varieties   

Dispersion
Not Available   
0.01   
27

Transparency
Translucent   
Transparent   

Refractive Index
2.106-2.263   
1.570-1.614   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Orthorhombic   

Birefringence
0.019   
0.042-0.044   

Clarity
Translucent   
Transparent   

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Mimetite and Anhydrite Optic Character

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

Similar to their colors, Mimetite and Anhydrite 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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