The FeS2 is also named as Pyrite

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The FeS2 is also named as Pyrite, the “Fools Gold”. It is brass yellow material and a metallic luster. It is the most common sulfide mineral found on earth. Iron Disulfide(Pyrite) FeS2 consists of finely grained sharp pieces of Pyrite crystals which are the reason for the increase in various properties like thermal conductivity and tensile strength. It is nontoxic and economical and forms at low temperatures and high temperature also and occurs, usually in small quantities, in igneous, metamorphic, and sedimentary rocks worldwide. Pyrite is so common that many geologists would consider it to be a ever-present mineral. The chemical composition of FeS2 is Fe (50%±2%) and S (44%±2%). Iron disulfide is a cubic. Iron disulfide finds applications in the Lithium metal sulfide batteries, Molding compounds, Production of sulfuric acid, Battery recycling and Solar photovoltaics