What materials are commonly produced by quarries?

Quarries are sites where dimension stone or aggregate materials are extracted through surface mining techniques. The materials produced by quarries generally fall into two categories:1

• Dimension Stone: These are large, prismatic blocks of rock extracted for use in construction, monuments, and decorative applications. Common types include marble, granite, limestone, sandstone, and slate.1
• Aggregate and Crushed Rock: This category includes sand, gravel, and crushed stone. These materials are essential for producing road base, concrete, and cement. Limestone is also frequently used as a chemical flux in blast furnaces.12

While dimension stone extraction is a highly selective process focused on quality and size, the recovery of aggregate typically involves drilling and blasting to fragment rock, which is then crushed and screened into uniform classes.12