Home
Gemstones


Coral and Emerald Optical Properties


Emerald and Coral Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Strong dichroism: yellow green Lazzarelli   

Dispersion
None   
0.01   
26

Transparency
Translucent   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.486-1.658   
1.565-1.602   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Hexagonal   

Birefringence
0.160-0.172   
0.0040-0.0070   

Clarity
Translucent   
Color grading system   

Benefits >>
<< Physical Properties

Coral and Emerald Optic Character

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

Compare Birthstones

Coral and Emerald Transparency

Similar to their colors, Coral 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, Coral is Translucent while Coral is Translucent in appearance.

Birthstones

Birthstones

» More Birthstones

Compare Birthstones

» More Compare Birthstones