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Anthophyllite and Cacoxenite Optical Properties


Cacoxenite and Anthophyllite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Silky   

Pleochroism
When Fe-rich   
visible: O = Pale yellow E = Canary yellow to yellow orange   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Not Available   

Refractive Index
1.603-1.690   
1.575-1.585   

Optic Character
Biaxial/+   
Not Available   

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

Birefringence
Not Available   
Not Available   

Clarity
Transparent   
Not Available   

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Anthophyllite and Cacoxenite Optic Character

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

Similar to their colors, Anthophyllite and Cacoxenite 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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