Pearls are precious gems that have been treasured for centuries. They are formed when an oyster or other mollusk secretes layers of nacre around an irritant, such as a piece of sand or a parasite. The nacre is made up of calcium carbonate and a protein called conchiolin. The thickness and quality of the nacre determine the pearl’s value.
Pearls have been used in jewelry for thousands of years. They are often associated with wealth and luxury. Pearls are also said to have a number of healing properties, including the ability to promote peace and tranquility.