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Anhydrite and Mother of Pearl Optical Properties


Mother of Pearl and Anhydrite Optical Properties


Optical Properties

Luster
Pearly, Greasy   
Not Available   

Pleochroism
For violet varieties   
Not Available   

Dispersion
0.01   
27
Not Available   

Transparency
Transparent   
Gemmological Tables (2004)   

Refractive Index
1.570-1.614   
1.53-1.69   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Not Available   

Birefringence
0.042-0.044   
0.16   

Clarity
Transparent   
Gemmological Tables (2004)   

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Anhydrite and Mother of Pearl Optic Character

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

Similar to their colors, Anhydrite and Mother of Pearl 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, Anhydrite is Transparent while Anhydrite is Transparent in appearance.

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