i need help for my chemistry project.
Metallic iron is almost impossible to find up here on the surface. Therefore, all sources of iron used by human industry exploit iron oxide minerals, the primary form which is used in industry being hematite. In emergency situations (such as during WWII), the low-grade ores taconite, goethite or bog ore. Magnetite can also be used. Iron ore mining methods vary by the type of ore being mined. There are four main types of iron ore deposits worked currently, depending on the mineralogy and geology of the ore deposits. These are magnetite, titanomagnetite, massive hematite and pisolitic ironstone deposits. These ores appear as banded iron formations (BIF) or magmatic deposits (as magnetite). The high grade hematite deposits are currently exploited on all continents, with the largest intensity in South America, Australia and Asia. Most large hematite iron ore deposits are sourced from altered banded iron formations and rarely igneous accumulations.
