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Pezzottaite and Anhydrite Optical Properties


Anhydrite and Pezzottaite Optical Properties


Optical Properties

Luster
Vitreous   
Pearly, Greasy   

Pleochroism
Moderate dichroic   
For violet varieties   

Dispersion
Not Available   
0.01   
27

Transparency
Transparent   
Transparent   

Refractive Index
1.598-1.620   
1.570-1.614   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Orthorhombic   

Birefringence
0.008-0.011   
0.042-0.044   

Clarity
Transparent   
Transparent   

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Pezzottaite and Anhydrite Optic Character

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

Similar to their colors, Pezzottaite 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, Pezzottaite is Transparent while Pezzottaite is Transparent in appearance.

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