'Knapping, chipping rock to shape tools, is usually done to this hard type of quartz'
flint
ROCKS & STONES: Knapping, chipping rock to shape tools, is usually done to this hard type of quartz
Knapping, chipping rock to shape tools, is usually done to this hard type of quartz
Knapping, chipping rock to shape tools, is usually done to this hard type of quartz
ROCKS & STONES
flint
ROCKS & STONES