I have worked in the past some stone from either or both New Mexico and or Nevada. It looks like a watered down milky translucent stone with some tiny dark star shaped specks (maybe fossils) in the stone. I would want it to be heat treated since I don't have a kiln and I am looking for either large spalls or chunks that I could spall out for arrow points. I know the stuff is tougher than boot leather because I have knapped a little of it and it is the slickest, waxiest looking stuff you have ever seen when heat treated. Looking for enough to yield at least a dozen or more arrow points that I can put on my deer arrows this fall.
I think the New Mexico stuff is what I am really interested in. The Nevada stuff I am thinking about is a type of siliconized volcanic ash and it is more white with bands of color through it.
I can trade an osage, or hackberry stave or try to work something out. I have a lot of dogwood in this area too.