can then be used to form geometric microliths (triangles, trapezes or lunate-shaped) following abrupt retouching of both worked edges. Often the retouching does not cover the whole edge and it is possible to see part of the fracture plain on these microliths. This has allowed researchers to reconstruct with a great deal of certainty the actions of the artisans who made these microliths.

The same microburin blow technique can be used to form other types of non-geometric microliths, such as,