Iron Pyrite, often called "fool's gold," is a mineral composed of iron and sulfur, with the chemical formula FeS₂. It has a metallic luster and a pale brass-yellow color, which can resemble gold, leading to its nickname. Iron pyrite is commonly found in sedimentary rocks and can form in various geological environments. This mineral is not just a curiosity; it has practical uses. Iron Pyrite can be used in the production of sulfuric acid, an important industrial chemical. Additionally, it is studied for its potential in renewable energy applications, particularly in solar cells and batteries.