The mineral pyrite (/ ˈpaɪraɪt / PY-ryte), [6] or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S 2 (iron (II) disulfide).

Pyrite is a brass-yellow mineral with a bright metallic luster. It has a chemical composition of iron sulfide (FeS 2) and is the most common sulfide mineral. It forms at high and low temperatures …

Dec 13, 2025 · pyrite, a naturally occurring iron disulfide mineral. The name comes from the Greek word pyr, “fire,” because pyrite emits sparks when struck by metal. Pyrite is called fool’s …

Pyrite is a very common mineral (also one of the most common natural sulfides, and the most common disulfide), found in a wide variety of geological formations from sedimentary deposits …

Pyrite is a naturally occurring mineral composed of iron and sulfur, with the chemical formula FeS₂. It belongs to the sulfide group of minerals and is known for its metallic luster and brass …

Detailed description, properties, and locality information guide about the mineral pyrite (fools gold).

Aug 29, 2025 · Pyrite (FeS2) is known as “Fool’s Gold” due to its metallic luster and brassy yellow hue resembling gold. Despite this, pyrite has distinct characteristics and a rich history of …

You're not a fool if you get tricked by this week's Mineral of the Week, pyrite! Though this sulfide looks golden from afar, its chemical formula, FeS2, is distinctly lacking any of the precious …

Pyrite is Fe 2 S, an important example of a sulfide mineral. Often known as "fool's gold", it has a shiny metallic gold color. All the samples shown here are on display in the Smithsonican …

Nov 2, 2012 · Pyrite, known as fool’s gold, is an iron sulfide with a metallic luster. Learn how it forms and how to identify it in the field.