Geoscience Reference
In-Depth Information
shallower angle to account for the breaking angle. Chose a hard, round stone for your hammer
stone, which you will pound against the flint to remove flakes. Fist-sized hammer stones are
easy to handle.
Figure 7-46. A 120˚ fracture of large flakes.
Because a somewhat squared flat platform is the best edge to hit against to remove good,
clean flakes from your base material, you may need to spend some time squaring the edge of
your stock between hammer blows. Stock can be squared by grinding against other stones or
lightly chipping the edge. Fine flakes can be removed from flint edges by applying pressure
with a sharply pointed stick or pointy bone, such as an antler. Called
pressure-flaking
, this
