Ironstone
/ˈaɪərnstəʊn/
Definition 1 of 1
Pro Tip 1/3Geological Material
Ironstone refers to rock with iron content, often mined for ore. 
The company excavated the nearby ironstone for steel production.
Pro Tip 2/3Specific Location
Ironstone is typically mentioned in discussions about geography or mining. 
Ironstone formations are abundant in the valley's subsoil.
Pro Tip 3/3Industrial Usage
Ironstone is often associated with industrial processes, especially metalworking. 
Our town prospered in the 1800s due to the ironstone industry.