Iron Ore is used to manufacture steels of various types:
Powdered iron: used in metallurgy products, magnets, high-frequency cores, auto parts, catalyst.
Radioactive iron (iron 59): in medicine tracer element in biochemical and
Iron blue: in paints ,printing inks, plastics, cosmetics, paper dyeing.
Black iron oxide: as pigment, in polishing compounds, metallurgy, medicine,
The Liganga mine is a large proposed iron mine located in Southern highland of Tanzania in the Ludewa District of Njombe Region. Road construction has begun in 2014. Ongaba represents one of the largest iron ore reserves in Tanzania and (perhaps) in the world having estimated reserves of 1.22 billion tonnes of ore grading 35% iron metal.