Pearl, perhaps, is known to each of us. This is a house for shellfish that live comfortably in it for hundreds of years, and a "cradle" for valuable pearls. And in fact, the stone mother of pearl is iridescent lime inner surface of the shells of various sea creatures, the composition is similar to very pearls. The only difference is that it "grows" on the sink, and the pearls appear in it from what gets there-for example, from a grain of sand. That's why they are mined together with the oldest times. It was especially appreciated by the Eastern peoples-Indians and Chinese for its strength and beauty. After all, the mother-of-pearl shimmer with all the colors of the rainbow. Especially in honor of the white mother of pearl, its pink and blue shades. The stone work to fine jewelry, unique he does many other things, such as arm weapons, musical instruments, paintings, boxes, mirrors. In addition to its aesthetic function, mother of pearl has the strongest healing and magical properties. For example, it protects against the evil eye and even helps to improve hearing, calm the nervous system.