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 …

May 1, 2018 · Pyrite is commonly referred to as “fool’s gold.” Although much lighter than gold, its brassy color and relatively high density misled many novice prospectors. Its name is derived …

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 …

Mar 5, 2025 · Explore the fascinating world of types of pyrite, from cubic to rainbow, and learn where these unique mineral formations can be discovered.

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 …