Ambergris ( or , Latin: ambra grisea, Old French: ambre gris), ambergrease or grey amber, is a solid, waxy, flammable substance of a dull grey or blackish colour, produced in the digestive system of sperm whales.
Freshly-produced ambergris has a marine, fecal odour. However, as it ages, it acquires a sweet, earthy scent, commonly likened to the fragrance of rubbing alcohol, without the vaporous chemical astringency. Although ambergris used to be very highly valued by perfumers as a fixative (allowing the scent to last much longer), it has now largely been replaced by synthetic ambroxan. Dogs are known to be attracted to the smell of ambergris and are therefore sometimes used by ambergris searchers....LESS