To the eye, it is not very beautiful, just a gray stone without interest, but the nose is exquisite. Ambergris is one of the rarest and most sought after raw materials in perfume. It is also the only authorized animal material, because it does not make the animal suffer or kill it. Ambergris runs aground on the beaches. It is a substance secreted by the sperm whale that expels it by natural means. The pieces of amber are thus carried by the currents, thrown by the waves and float for years until the hand of the man come to pick them up.