Haematite is a primary ore of iron. The other primary ore of iron is magnetite. Hematite is used to produce iron which is used to make steel. Many different minerals can be combined with iron to produce different kinds of steel that have differing properties. Some are stronger, harder, more flexible, etc.
A familiar example is stainless steel. Steel is used in the manufacture kitchen equipment, furniture, tools, bridges, buildings, cars, building equipment, machinery, road construction, shipbuilding, trains, train tracks etc.
Powdered iron is used in magnets, high-frequency cores, car parts, and as a catalyst. Radioactive iron (iron 59) is used in medicine and as a tracer element in research. Iron blue is used in paints, printing inks, plastics, cosmetics, paper dyeing. Black iron oxide is used as a pigment and in polishing compounds, medicines and magnetic inks.
Haematite can also be polished to give an attractive and shiny grey solid that can be used to make jewelry.
A familiar example is stainless steel. Steel is used in the manufacture kitchen equipment, furniture, tools, bridges, buildings, cars, building equipment, machinery, road construction, shipbuilding, trains, train tracks etc.
Powdered iron is used in magnets, high-frequency cores, car parts, and as a catalyst. Radioactive iron (iron 59) is used in medicine and as a tracer element in research. Iron blue is used in paints, printing inks, plastics, cosmetics, paper dyeing. Black iron oxide is used as a pigment and in polishing compounds, medicines and magnetic inks.
Haematite can also be polished to give an attractive and shiny grey solid that can be used to make jewelry.