Portland Stone quarry on the Isle of Portland, England
A quarry is a type of open-pit mine from which rock or minerals are extracted. Quarries are generally used for extracting building materials, such as dimension stone, construction aggregate, riprap, sand, and gravel. They are often colocated with concrete and asphalt plants due to the requirement for large amounts of aggregate in those materials. Fossils are also commonly uncovered in quarries, including the noteable Darwinius type specimen.