The mineral primarily used for making steel is iron ore. Iron ore is mined and processed to extract iron, which is a key ingredient in steel production. The most commonly used forms of iron ore include hematite and magnetite. Once extracted, the iron is combined with carbon and other elements and subjected to high temperatures in blast furnaces to create steel. Steel is widely utilized in construction, manufacturing, and engineering due to its strength and versatility. The steel industry plays a significant role in global economic development and infrastructure projects.