crushed rock

The crushed rock is now like sand, and some of the grains still contain gold, which has not been detached by the crushing.

In Philadelphia the blocks must be composed of at least one barrel of Portland cement to five barrels of crushed rock or gravel.

But—a little trickle of crushed rock came from around the bolts in the slab to which the bell was fastened.

There is a knack even in pushing crushed rock under a railroad tie.

I imagine that the gravel-haul will cost anywhere between six and ten cents a yard more than the crushed rock.