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Pezzottaite and Pyrophyllite Optical Properties


Pyrophyllite and Pezzottaite Optical Properties


Optical Properties

Luster
Vitreous   
Pearly   

Pleochroism
Moderate dichroic   
NilArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Translucent   

Refractive Index
1.598-1.620   
1.534-1.601   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Not Available   

Birefringence
0.008-0.011   
0.050   

Clarity
Transparent   
Translucent   

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Pezzottaite and Pyrophyllite Optic Character

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

Similar to their colors, Pezzottaite and Pyrophyllite 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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