Agatized Coral is the remains of corals that have fossilized and have changed (pseudo-morph) into Agate.
Bamboo Coral is a white branched marine plant belonging to the family of Coralloid. Bamboo 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.