Abalone

The difference between Abalone and Mother of Pearl relates to the shell and the organism inside the shell, respectively. The terms Abalone and Mother of Pearl are interchangeable, as people do not see much difference between them.
Mother of Pearl is a layer of lines inside the shells of mollusks. Mother of Pearl, also known as Nacre, is a shiny layer that forms inside the shell. Abalone and pearl oysters are known as good sources of mother of pearl. Mother of pearl is mainly used to decorate jewelry, musical instruments, or the handles of traditional knives. Mother of Pearl is actually a protective shield created by mollusks. The mother of pearl mask also protects the mollusk from infections and reduces irritation caused by organic substances that enter the shell.
It can also be seen that abalone has darker iridescent shades compared to Mother of Pearl, which has a milky white shade.
While mother-of-pearl can be obtained from various marine and freshwater mollusks, abalone is not found in abundance and its harvest is limited.