A metal Alloy is a mixture of two or more elements in a solidified solution of a metallic matrix. Examples are Steel (Iron+Carbon), Bronze (Copper+Tin), and Electrum (Gold+Silver+::Copper), just to name a few. Synthetic alloys, or alloys that are NOT naturally occurring, such as stainless steel, are usually designed to resist corrosion, to be malleable, or to be an all-purpose material. Alloying metals often enhances its properties, such as Chromium and Nickel alloyed creates stainless steel, an enhanced version of steel, much stronger, and very resistant to corrosion.