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Emerald and Diaspore Optical Properties


Diaspore and Emerald Optical Properties


Optical Properties

Luster
Vitreous   
Pearly   

Pleochroism
Strong dichroism: yellow green Lazzarelli   
Strong   

Dispersion
0.01   
26
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
Transparent   

Refractive Index
1.565-1.602   
1.702-1.750   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Orthorhombic   

Birefringence
0.0040-0.0070   
0.048   

Clarity
Color grading system   
Transparent   

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Emerald and Diaspore Optic Character

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

Similar to their colors, Emerald and Diaspore 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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