Iron oxides are chemical compounds made of iron and oxygen. They are commonly found in nature and can appear in various forms, such as hematite, magnetite, and goethite. These compounds are important in many industries, including construction, pigments, and metallurgy. Iron oxides are also significant in environmental science, as they play a role in soil composition and the cycling of nutrients. They can affect the color of soil and are often used in ceramics and paints due to their stability and vibrant hues.