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Pezzottaite
Pezzottaite

Anthophyllite
Anthophyllite



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Pezzottaite
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Anthophyllite

Pezzottaite and Anthophyllite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Moderate dichroic
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.598-1.6201.603-1.690
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Hexagonal
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.008-0.011-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Pezzottaite and Anthophyllite Optic Character

Pezzottaite and Anthophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Pezzottaite and Anthophyllite 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 Anthophyllite 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. Anthophyllite has Biaxial/+ character.

Pezzottaite and Anthophyllite Transparency

Similar to their colors, Pezzottaite and Anthophyllite 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.