Iron is a chemical element with the symbol Fe and atomic number 26. It is a vital metal used in construction, manufacturing, and various industries due to its strength and durability. Iron is the most abundant element on Earth by mass and is primarily found in ores such as hematite and magnetite. In addition to its industrial uses, iron is essential for biological processes. It plays a crucial role in the formation of hemoglobin, which carries oxygen in the blood. A deficiency in iron can lead to anemia, highlighting its importance in both health and industry.