| Seaside and river gravel, which is composed usually of rounded, waterworn pebbles, is unfit for surfacing roads. |
| The bones are black, brown or white, highly fragmented and waterworn to a variable degree. |
| The houses are generally built of waterworn stones, without cement, but plastered with mud outside and inside. |
| The bed of the river is gravelly, or composed of waterworn stones, which diminish in size as you recede from the mountains. |
| Sportrock sites are limited to accesible areas of high quality quartzite, and waterworn limestone. |
| After scratching our way over a metre downwards through the shingle, we finally hit the waterworn rocks of the early Carboniferous. |
