I have to find the photos but a fellow from south west Arkansas sent me around
20 pounds of his diggin rejects he had piled in his yard. Many were preforms.broken preforms and many tips and bases. I do not think it was cooked as it was mostly Hing City. It was big stuff and very pretty rock though. (colorful)
The main material in his area was Ouacaita Quartz. Nice to knap.
Zuma