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1 Types #10, #57 and #411 crushed granite average $0.50 per square foot. 2  The average cost per square foot of the highest-quality crushed granite is $0.76. 3  Types #2 and #1 of crushed granite average $0.76 per square foot as they are of the highest quality of rock.4  This cost estimate is for materials only. The average cost per square foot of the highest-quality crushed granite is $0.76. 2  Types #2 and #1 of crushed granite average $0.76 per square foot as they are of the highest quality of rock.
Most crushed stone is used in highway construction and building construction. In the construction of a two-lane asphalt highway, about 25,000 tons of crushed stone is used per mile. In building a small residential subdivision, about 300 tons of crushed stone is used per home [2].rap rock is a layman's name used for any dark-colored igneous rock that is used in construction. Basalt, peridotite, diabase, and gabbro are examples of trap rock. Granite and trap rock are the second and third most commonly used types of rocks for producing crushed stone.