15.20 лв.
Mother of pearl from the Turkish (Sedef) is called the inner part of the shells of molluscs. Pearls and nacre have almost the same composition. Mother of pearl has iridescence, which causes the interference of light of different wavelengths and causes the light to reflect at different viewing angles. Thanks to this, the optical effect of mother-of-pearl has different shades from white to almost black.
It is necessary to use personal protective equipment when handling it.