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Lizardite and Anthophyllite Optical Properties


Anthophyllite and Lizardite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Pearly   

Pleochroism
Not Available   
When Fe-rich   

Dispersion
Not Available   
Not Available   

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

Refractive Index
1.538-1.560   
1.603-1.690   

Optic Character
Not Available   
Biaxial/+   

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

Birefringence
Not Available   
Not Available   

Clarity
TranslucentAnthony et al   
Transparent   

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Lizardite and Anthophyllite Optic Character

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

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Lizardite and Anthophyllite Transparency

Similar to their colors, Lizardite 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, Lizardite is Handbook of mineralogy (2001) and TranslucentAnthony et al while Lizardite is Handbook of mineralogy (2001) and TranslucentAnthony et al in appearance.

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