4” Broken Basalt$100.00 Black/dark brown color – excellent for plant beds or decorative rock areas. Choose... Amount Needed Area Calculator Length (ft) Width (ft) Depth (ft) Volume (cubic yards) 4” Broken Basalt quantity Add to cart Categories: Bulk, Rocks Description Description Black/dark brown color – excellent for plant beds or decorative rock areas. Related products Bulk/Rocks2-6” Cobble Rock $69.00 Select options Bulk/MulchesTonn Mulch $45.00 Select options Bulk/CompostSteer Manure $55.00 Select options