The Complete Guide to Crushed Stone and Gravel Gra Rock
Nov 12, 2019 Basalt: An igneous rock often used for road pavement or concrete aggregates. They are also used for masonry projects. Granite: An igneous rock that is durable and is easily polished. Because of the color, grain, and polishing ability; they are often used inside homes for countertops or on the outside of monumental or civic buildings.