An expensive coat is a luxurious item that can be made from a variety of materials. FUR, MINK, GILT, and SABLE are all materials that can be used to make an expensive coat. FUR is a material made from the hides of animals such as foxes, rabbits, and minks. MINK is a type of FUR made from the hide of the American MINK, which is a semi-aquatic mammal. GILT is a type of fabric made from gold or silver thread. SABLE is a type of FUR made from the hide of the SABLE, a species of marten found in northern Russia and Siberia. All of these materials are used to make luxurious and expensive coats.