Natural Pearls Defined
Natural pearls are calcium carbonate secretions which form within mollusks without human intervention.
Natural Pearls - Accidents of Nature
Natural pearls are formed randomly and really are simple accidents of nature. When a certain type of irritant, such as a parasite, becomes lodged in the tissue of a mollusk, the animal responds by secreting a calcium carbonate substance called nacre to coat the intruder and protect the mollusk. Over a period of several...
