The journey of 10mm aggregate begins in natural stone deposits, often located in quarries. These geological formations contain massive rock beds that are suitable for crushing into various sizes of aggregate. The type of rock—granite, limestone, basalt, or dolomite—will influence the physical properties of the final product. https://www.storeboard.com/blogs/construction/how-10mm-aggregate-is-manufactured-from-quarry-to-construction-site/6292129