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Chrysocolla and Herderite Optical Properties


Herderite and Chrysocolla Optical Properties


Optical Properties

Luster
Vitreous, Greasy   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
None   
Not Available   

Transparency
Opaque   
Transparent   

Refractive Index
1.460-1.570   
1.587-1.642   

Optic Character
Not Available   
Biaxial/+   

Crystal System
monoclinic   
monoclinic   

Birefringence
0.023-0.050   
0.028-0.032   

Clarity
Gemmological Tables (2004) More from other references   
Transparent   

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Chrysocolla and Herderite Optic Character

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

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Chrysocolla and Herderite Transparency

Similar to their colors, Chrysocolla and Herderite 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, Chrysocolla is Opaque while Chrysocolla is Opaque in appearance.

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