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Emerald and Clinochlore Optical Properties


Clinochlore and Emerald Optical Properties


Optical Properties

Luster
Vitreous   
Pearly, Greasy   

Pleochroism
Strong dichroism: yellow green Lazzarelli   
Distinct: light yellow-green to light bluE   

Dispersion
0.01   
26
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
Transparent   

Refractive Index
1.565-1.602   
1.571-1.597   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Hexagonal   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m   

Birefringence
0.0040-0.0070   
Not Available   

Clarity
Color grading system   
Transparent   

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Emerald and Clinochlore Optic Character

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

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Emerald and Clinochlore Transparency

Similar to their colors, Emerald and Clinochlore 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, Emerald is Translucent, Transparent and Transparent to translucent while Emerald is Translucent, Transparent and Transparent to translucent in appearance.

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