Ferrous Sulfide (Mesh 60,100)

Ferrous sulfide, also known as iron sulfide or iron(II) sulfide, is a chemical compound composed of iron and sulfur with the chemical formula FeS. It is a black, solid mineral that is insoluble in water and reacts with acids to produce hydrogen sulfide gas. Ferrous sulfide is commonly found in nature as the mineral pyrite, which has a bright metallic luster and is often referred to as "fool's gold" due to its resemblance to gold. Pyrite is also used in various industrial applications, such as in the production of sulfuric acid, but can be a source of environmental pollution if it is not properly managed. Ferrous sulfide is also used as a laboratory reagent, particularly in the preparation of hydrogen sulfide gas. It has also been used as a flotation agent in the mining industry, and as a source of iron in the production of steel.