"Pearls." Composition of the pearl and why treatment have to be exercised in cleansing and don. Pearls variety by natural means in both of those fresh new and saltwater mollusks. Quite possibly the most wellknown pearls are saltwater pearls shaped within different forms of pearl oysters. Although "oriental" or absolutely purely natural pearls had been the gems in ages earlier, pearl farming has brought about a supply of cultured pearls which would be unattainable from free of charge ranging oysters and the efforts of pearl divers.