Dating obsidian arrowheads
They brought small bundles of tools manufactured from rocks, as well as antlers, bones, shells, and wooden sticks.Fairfax Public Schols, Stone Tools used by Virginia's First People All stone and bone tools were carried on the "seasonal round" as bands followed the migrations of animals and the ripening pattern of plants, so the weight of the tool kit was limited.If you know the state or region where the arrowhead is from, that will narrow the list of possible projectile points from 1,200 to a couple of hundred options. The location and the design of the arrowhead is enough to narrow the type to only a dozen possibilities.
The stone debris at Bonifant alerted archeologists that there could be a local source of high-quality stone in the area.
At the Thunderbird base camp, excess rock was chipped off to produce chunks suitable for later processing into blades and points.