Since Roman times, flint has been exploited for use in a wide variety of structures and buildings, ranging from humble dwellings and boundary walls to castles and cathedrals. Walls made using this hard, crystalline silica contribute significantly to the distinctive appearance of many towns and villages in eastern and southern England.
When freshly extracted from the chalk in which it is formed, flint is black with a white crust, but weathered flints – from
