Nacre, also known as the iridescent lining of certain mollusk shells, is composed primarily of aragonite, a form of calcium carbonate, arranged in a brick-like structure. This unique arrangement, combined with a conchiolin protein matrix, creates its characteristic lustrous sheen and durability. Examples of its natural occurrence include the interiors of pearl oysters and abalone shells.
The combination of strength and beauty has made this material prized for centuries in jewelry, decorative arts, and even musical instruments. Its resilience, coupled with its visually appealing iridescence, makes it a sought-after material across various cultures and time periods. This historical significance underscores its inherent value and enduring appeal.
