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Emerald and Moissanite Optical Properties


Moissanite and Emerald Optical Properties


Optical Properties

Luster
Vitreous   
Adamantine   

Pleochroism
Strong dichroism: yellow green Lazzarelli   
NilArthur Thomas   

Dispersion
0.01   
26
0.10   
5

Transparency
Transparent, Translucent, Transparent to translucent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.565-1.602   
2.648-2.691   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
6H polytype   

Birefringence
0.0040-0.0070   
0.043   

Clarity
Color grading system   
TransparentUlrich Henn and Claudio C. Milisenda   

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Emerald and Moissanite Optic Character

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

Similar to their colors, Emerald and Moissanite 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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