Definitions for "Fool's Gold"
Common name for iron pyrite, which is sometimes mistaken for gold. Iron pyrite is hard and brittle, while gold is soft and malleable.
Popular name for iron pyrite. It is sometimes mistaken for gold and is often associated with it, but it is hard and brittle, whereas gold is soft and malleable.
Iron pyrite, a flaky and brittle mineral that seldom fools a real miner. Real gold is soft and malleable.