how is iron found in nature ?
underground, as iron ore.
Iron is usually found as its oxide Fe2O3, also known as rust.
Iron is found in various mineral forms, most commonly Hematite, which is Iron (III) Oxide, Fe2O3. Iron ore is a broad term also covering magnetite (Fe3O4), limonite (Iron oxide-hydroxide) and siderite (Iron Carbonate). Iron also occurs naturally in other forms, such as Pyrite (FeS2, aka fool's gold). It is also believed that the Earth's core is mostly Iron and Nickel.
underground, as iron ore.
Iron is usually found as its oxide Fe2O3, also known as rust.
Iron is found in various mineral forms, most commonly Hematite, which is Iron (III) Oxide, Fe2O3. Iron ore is a broad term also covering magnetite (Fe3O4), limonite (Iron oxide-hydroxide) and siderite (Iron Carbonate). Iron also occurs naturally in other forms, such as Pyrite (FeS2, aka fool's gold). It is also believed that the Earth's core is mostly Iron and Nickel.