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Clinochlore and Anthophyllite Optical Properties


Anthophyllite and Clinochlore Optical Properties


Optical Properties

Luster
Pearly, Greasy   
Vitreous, Pearly   

Pleochroism
Distinct: light yellow-green to light bluE   
When Fe-rich   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Transparent   

Refractive Index
1.571-1.597   
1.603-1.690   

Optic Character
Biaxial/+   
Biaxial/+   

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

Birefringence
Not Available   
Not Available   

Clarity
Transparent   
Transparent   

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Clinochlore and Anthophyllite Optic Character

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

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Clinochlore and Anthophyllite Transparency

Similar to their colors, Clinochlore 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, Clinochlore is Transparent while Clinochlore is Transparent in appearance.

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