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Emerald and Zincite Optical Properties


Zincite and Emerald Optical Properties


Optical Properties

Luster
Vitreous   
Subadamantine, Resinous   

Pleochroism
Strong dichroism: yellow green Lazzarelli   
Very weak   

Dispersion
0.01   
26
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
TransparentRobert C. Kammerling, The Journal of Gemmology (1995) More from other references   

Refractive Index
1.565-1.602   
2.013-2.029   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Hexagonal   

Birefringence
0.0040-0.0070   
0.016   

Clarity
Color grading system   
TransparentRobert C. Kammerling   

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Emerald and Zincite Optic Character

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

Similar to their colors, Emerald and Zincite 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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