Atomic mass 55.847 Thermal conductivity 0.802 Atomic radius 1.2 Covalent radius 1.17 Density 7.86 Atomic volume 7.1 Melting point 1809 Oxidation states 2,3 Boiling point 3023 Stable isotopes 4 Heat of vapor.
Pure iron has little use - some for analytical chemistry and some in medicine.
It is made much more useful by alloying it with other materials. Adding a small amount of carbon to iron greatly strengthens it, and other useful alloys are made by adding amounts of the transition metals. Iron ore is abundant, but its isolation is an energy-intensive process. The chief ores are the oxides hematite, Fe2O3 and magnetite, Fe3O4, and its carbonate siderite, FeCO3. Iron pyrite, FeS2 contains the iron, but it is difficult to isolate from the sulfur.