Flint is a sedimentary rock that is primarily composed of silica, specifically in the form of microcrystalline quartz.

The formation of flint occurs in chalk or limestone deposits where organic matter undergoes fossilisation and the silica from the surrounding environment is precipitated into these sediments.

Over time, through processes of diagenesis, the silica consolidates and hardens, resulting in the creation of flint nodules that can be found embedded within the host rock.

The presence of this resilient stone has historically played a significant role in local craftsmanship and tool-making, showcasing its importance both geologically and culturally.