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Anhydrite and Jeremejevite Optical Properties


Jeremejevite and Anhydrite Optical Properties


Optical Properties

Luster
Pearly, Greasy   
Vitreous   

Pleochroism
For violet varieties   
Colorless   

Dispersion
0.01   
27
Not Available   

Transparency
Transparent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.570-1.614   
1.638-1.650   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Hexagonal   

Birefringence
0.042-0.044   
0.0130   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Anhydrite and Jeremejevite Optic Character

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

Similar to their colors, Anhydrite and Jeremejevite 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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