Abalone

Abalone makes an excellent complement to silver and is popular in jewelry as well as items such as trinket boxes and ornamental silver items. Abalone are a type of gastropod shellfish.

Abalone are known by their colorful inside shell. This is also called ear-shell, ormer in Guernsey, abalone in South Africa, and pāua in New Zealand.

The shell of the abalone is known for being very strong. It is made of very tiny calcium carbonate tiles stacked like bricks. Between the layers of tiles is a sticky protein substance. Allergic skin reactions and asthma attacks can happen when breathing the dust made when these tiles are broken down.

The colorful inside part of the abalone shell can be used for decorative inlays often used in guitars, furniture and other items. Reference: Wikipedia