A new study finds that Clovis-era quartz crystal points, despite being harder to knap than chert or obsidian, were functionally similar to other stone tools. Researchers analyzed 58 artifacts and ...
Quartz crystals are difficult to knap due to size, hardness, and crystalline structure, making them a "low-quality" raw ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results