Shell-shaped decorative objects were very popular during the 19th century. There were trinket boxes covered in tiny shells, counter bells made with several mother-of-pearl shells put together into… ...

Mother-of-pearl is the hard, silvery, internal layer of several kinds of shells, especially oysters, the large varieties of which in the Indian Seas secrete this coat of sufficient thickness to ...

Conch shells "have this really unique architecture," Gu explains. The structure makes the material 10 times tougher than nacre, commonly known as mother of pearl.