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Jadeite and Emerald Optical Properties


Emerald and Jadeite Optical Properties


Optical Properties

Luster
Pearly   
Vitreous   

Pleochroism
NilArthur Thomas   
Strong dichroism: yellow green Lazzarelli   

Dispersion
Not Available   
0.01   
26

Transparency
Translucent   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.652-1.688   
1.565-1.602   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Hexagonal   

Birefringence
0.013-0.020   
0.0040-0.0070   

Clarity
Translucent   
Color grading system   

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Jadeite and Emerald Optic Character

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

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Jadeite and Emerald Transparency

Similar to their colors, Jadeite and Emerald 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, Jadeite is Translucent while Jadeite is Translucent in appearance.

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Red Gemstones


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