Cars are not made of minerals, but rather from a combination of different materials, including metals, plastics, and glass. However, minerals are used in the production of cars. The steel body of a car is made from iron-rich minerals like magnetite and hematite, while door handles and badges are often coated in chromium, which comes from the mineral chromite. Calcium carbonate is the most common filler and extender mineral used in the production of automotive paints, adhesives, sealants, and carpet backing. It is also added to glass melt to produce soda-lime glass. Other minerals used in the production of cars include dolomite, magnesite, and chromite.