Mother-of-Pearl, scientifically, is called nacre. Nacre lines the interior of the shells of certain kinds of mollusks. This layer of nacre serves to create a smooth surface on the interior of the shell that protects the organism’s soft tissue. When debris or a foreign object enters the shell, the creature secrets nacre around the object. The nacre creates a hard, smooth surface around the debris—thus forming a pearl. So, the term, “Mother-of-Pearl” is quite accurate.
Mother-of-Pearl can be extracted from shells and has been used for centuries for decorative purposes. Its iridescent qualities and the variety of colors that it exhibits make it a beautiful material to use for everything from jewelry to furniture.