Ambergris (Ambra grisea, Ambre gris, ambergrease, or grey amber)'s a solid, waxy, flammable substance of a dull gray or blackish color produced in the digestive system of sperm whales. Ambergris has a peculiar sweet, earthy odor. The principal historical use of ambergris was as a fixative in perfumery, though it's now been largely displaced by synthetics. Source Ambergris occurs as a biliary secretion of the intestines of the sperm whale, and can be found floating upon the sea, or in the sand… (More on Ambergris)