noun
- a hard dark rock, especially basalt or a similar igneous rock
Usage: geological; British
Examples
- The old castle was built from local whinstone quarried nearby.
- Whinstone makes excellent road material due to its hardness.
- The geologist identified the dark outcrop as whinstone.
- Ancient walls of whinstone still stand throughout the Scottish countryside.
- The quarry produced high-quality whinstone for construction projects.
- Farmers often encountered whinstone when plowing their fields.