i do too
it is rare to find an arrow point made from that material
it is 'rainy buttes silicified wood'..................it comes from southwest north dakota.....close to a few hundred miles away
the paleos liked that material as it was easy to work........however it usually was not used for things like scrapers and knives cuz it did not hold an edge for long
but one thing for sure it sure is pretty stuff
the little lavender colored broke in image #12 is quartzite
Great finds. That first point is made from some really nice material and too bad that Kohokia was broke. The notches on that point are nice and deep and narrow.