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Anthophyllite and Chrysocolla Optical Properties


Chrysocolla and Anthophyllite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Vitreous, Greasy   

Pleochroism
When Fe-rich   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Transparent   
Opaque   

Refractive Index
1.603-1.690   
1.460-1.570   

Optic Character
Biaxial/+   
Not Available   

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

Birefringence
Not Available   
0.023-0.050   

Clarity
Transparent   
Gemmological Tables (2004) More from other references   

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Anthophyllite and Chrysocolla Optic Character

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

Similar to their colors, Anthophyllite and Chrysocolla 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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