I know when we discuss quartz/quartzite, there are differences of opinions. Man may or may not have fractured it to that shape. However NAs did use whatever stone was available in the area they were living if they were living any distance away from a "good stone" quarry area (in NC that mostly meant living any distance from the rhyolite around the Uwharrie mtns). Randy Daniel in his book Hardaway Revisited concluded that when living any distance form the Uwharries, NAs conserved the good stone (rhyolite) for points, tools, etc and tried to make do with other stone when possible. And at Cactus Hill, more than 85% of the debitage was the fracture and shatter debris of quartz and quartzite. Hope I haven't opened a can of worms here.
interesting observations. It may be relevant to learn, that beginning in the Late Archaic, throughout eastern North America, a so-called pebble technology developed. The stemmed variety of Lamoka points are often regarded as where it started. A whole series of points similar to Lamokas, and predominently made of quartz in New England, for instance, as well as tools like scrapers, knives, and perforators, began to be fashioned directly from suitable sized quartz pebbles. Pebbles could be found anywhere, especially quartz, and could also be carried in a tool quick, for quick conversion into those several tool forms.
This led to a reduction in reliance on quarries for procuring tool stone, and this led to greater mobility in both temporal and special terms. No matter where one was in the seasonal round, or what time of year, one could easily find pebbles. So, it is now becoming clear that this pebble technology, this pebble tool industry was behind the production of many of our so-called "small stem points" here in eastern North America.
Here is a Squibnocket Stemmed point I found a couple of days ago. It was fashioned from a pebble, not from quarried stone. The development of this quartz pebble industry was a key development resulting in many of the smaller points and tools found in our assemblages. For instance, in Maine, there are no known Brewerton sites, but Brewerton points are found, only in association with small stem points. It is believed, that as various knife forms and point forms evolved in various native cultures, such as the Brewerton series of points, that these evolving forms were simply adopted into this present and long enduring pebble tool kit. Points made from quartz pebbles continued to dominate right into Late Woodland times, here in southern New England.
Several point styles in the East, including Lamoka, Wading River, Squibnocket, Swan Lake, and Bradley Spike all often show the original pebble rind on an un worked base, demonstrating that all these points were the result of a pebble industry and technology, not from quarries.
