Polished Coral Nugget Bead • Natural
 
 
Coral is a hard stony substance secreted by certain marine coelenterates as an external skeleton, typically forming large reefs in warm seas. [Wiki}
 
Skeletons are made up of calcium carbonate, magnesia and organic substances. It is extremely sensitive to acid and heat. Any color, other than white, has been dyed. To keep it from fading avoid direct sunlight for long periods of time, temperature extremes, bleach, ammonia & acid washes, perfumes and hair spray. 
 
 
***************************
* Sizes, shapes and colors my vary due to being a natural stone, being hand-carved and/or difference in computer monitors.