Even though prehistoric man used all the material resources available in his environment, only stone and bone, materials that are sufficiently resistant to the passage of thousands of years in the ground, have come down to us.
Present in the Bergerac region and the Isle valley, flint was widely used for its sharpness and cutting qualities in the manufacture of tools. Other minerals were used as a firing pin or anvil, to delimit a fireplace, to make a lamp or to pave the bottom of a hut.
Hard materials of animal origin, teeth, bones and especially wood were taken from the forest to be transformed into objects. Soft materials, on the other hand, only left indirect traces on the tools that worked them.