Pyrite

Rarity: Rare

A topic known well beyond its field, found in many languages.

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At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

The mineral pyrite ( PY-ryte), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral.

Excerpt from the Wikipedia article “Pyrite”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Ivar Leidus, CC BY-SA 4.0, via Wikimedia Commons.