A stone axe is a tool with a working part made of stone, which previously had a transverse handle. It replaced an older chopper in the Upper Paleolithic.
The axe was made of flint, obsidian, hornstone, slate or any other suitable stone with a shell fracture that allows you to get sharp chips when beating the workpiece.
More «viscous» rocks were also used: shale, amphibolite, jade, serpentinite and others that could be grinded and drilled.
It was used for splitting wood lengthwise, as well as in the with leather or clay vessels.