Yep. That group all has it's oddities. The one on the left is a pretty good end scraper (sort of), the second one is worked on both sides and all four edges, the third is a uniface probably just plain debitage, the 4th is, I have no clue!, the 5th is a rough drill? as the base has a nice 60 degree edge and is serrated, and the one on the right I think is a blank that was going to be a knife maybe. I live on an ancient quartz quarry. Almost nothing but debitage, and a whole lot of it. As I've said before, I would just classify myself as nuts but I find the same shapes all the time. I think what I find are just the thousands of reduction pieces and screw ups that must have been inevitable with quartz.