Cobblestone is a natural building material based on cobble-sized stones, and is used for pavement roads, streets, and buildings.
Where do cobbles come from?
Today cobbled streets have an iconic status in the hearts of the British. The word cobblestone comes from the English word cob which is used to describe small, round lumpen shaped items. These stones were known as cobbles and their shape and durability made them perfect to construct roads with.
What kind of rock is cobblestone?
In geology, cobble or cobblestone is the word for a rock in the size range of 64-256 mm (2.5-10 inches). (If it is smaller, then it is a pebble; if it is larger, it is a boulder.) The word is commonly applied to any type of rounded rock (basalt, granite, gneiss, sandstone, etc.)