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Anthophyllite and Lizardite Optical Properties


Lizardite and Anthophyllite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Not Available   

Pleochroism
When Fe-rich   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
TranslucentAnthony et al, Handbook of mineralogy (2001)   

Refractive Index
1.603-1.690   
1.538-1.560   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma   
Not Available   

Birefringence
Not Available   
Not Available   

Clarity
Transparent   
TranslucentAnthony et al   

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Anthophyllite and Lizardite Optic Character

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

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Anthophyllite and Lizardite Transparency

Similar to their colors, Anthophyllite and Lizardite 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, Anthophyllite is Transparent while Anthophyllite is Transparent in appearance.

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