The coarse rock felt very solid and very real.

Siltstone is a sedimentary rock which has a grain size in the silt range, finer than sandstone and coarser than claystones.

It consists of flood basalts, coarse volcaniclastic rocks and sandy tuffs interbedded with subordinate andesite and basaltic lava flows.

There they were flung face down on the coarse rock.

All of the concrete used in the structure, excluding that of the columns, is mixed with a light, coarse rock.

The rocks have been fractured into coarse and angular rocks of different sizes and shapes.

The Ogallala Formation consists mostly of coarse sedimentary rocks in its deeper sections, which transition upward into finer-grained material.

Her fingers were bloody from the blade and the coarse rock.

Hand axes are mainly made of flint, but rhyolites, phonolites, quartzites and other rather coarse rocks were used as well.