Flint axe

The stone exhibits a glass-like fracture similar to obsidian, and can be knapped to form large blades.

The offcuts were sharp enough to be used a small flint knives, while the larger parts of a knapped nodule could be polished to form an axe-head.

They competed with other hard rocks such as greenstone, which were produced at Langdale in the British Lake District and got larger as working continued.

[3] Flint nodules are commonly found in Cretaceous chalk deposits, such as those of southern Britain and every where but France.

They were mined during the Neolithic period in many locations, one of the most famous being at Grimes Graves in Norfolk, England.

In Nagada, an Upper Egypt Predynastic settlement site, the Flint axe was one of the most commonly bi-facial tools located there.