In the dimension stone industry, gabbro is sold under the name "black granite." Gabbro is also used to make a number of rough-cut products such as curbing, ashlars, paving stones, and other products. The most common use of gabbro is as a crushed stone or aggregate. Crushed gabbro is used as a base material in construction projects, as a crushed stone for road construction, as railroad ballast, Suitable for building in wet places and building pier and anywhere that a durable crushed stone is needed as fill.
