A brassy yellow mineral that can be mistaken for gold, especially pyrites.
More example sentences
- But beware lest you mistake fool's gold for the real thing.
- The latter mineral, a sulphide of iron, has a shiny metallic lustre and was often mistaken for gold itself: it is the infamous fool's gold.
- But remember, as Rumi said: There is fool's gold because there is real gold.
Definition of fool's gold in:
- The US English dictionary