Iron oxide.
Fe2O3
Rust is hydrated iron oxides: Fe2O3.nH2O + FeO(OH).
Rust is a general term for iron oxides. It is formed from the reaction of Iron and water.
Rust is an iron oxide compound. There are several different iron oxides that make up rust.
Oxides. Like Iron Oxide (rust).
After oxidation iron is transformed in oxides.
Light and water and Oxygen. Metals which easily form oxides, especially when wet, will rust.
With the exception of iron , no metals rust. Rust is the oxide of iron. However, most metals do form oxides. Notably Gold and Platinum do not readily form oxides.
It is silver oxides (Ag2O) or the rust of silver.
Iron does rust in the artificial sites because it combines with atmospheric oxygen to form oxides.
Rust is a general term for describing iron oxides. In colloquial usage, the term is applied to red oxides, formed by the reaction of iron and oxygen in the presence of water or air moisture
Iron or materials containing iron will rust into oxides, either Fe2O3 (light brown) or Fe3O4 (dark brown).
In the case of rust anyway, metal oxides form