Mother of Pearl is a natural material that forms the inner layer of the shells of certain mollusks, such as oysters and abalones. It is composed of aragonite and conchiolin, which create a smooth, iridescent surface. This beautiful layer serves as a protective coating for the mollusk and is often used in jewelry and decorative items. The unique luster and colorful sheen of Mother of Pearl make it a popular choice for inlays in furniture, musical instruments, and crafts. It is also used in the production of buttons and other accessories, showcasing its versatility and aesthetic appeal.