pyrite
/ˈpaɪraɪt/
noun
- A shiny, pale yellow mineral that is often mistaken for gold; also called fool's gold.
- Pyrite is often used in jewelry because of its metallic luster.
- The rock collector showed us a piece of pyrite that sparkled like real gold.
- Miners in the 1800s sometimes celebrated finding pyrite, only to realize it was worthless.