Thanx. The triangle and the scraper are the only two that are coral... the rest chert. I like your reference of a triangle. There's a big difference to me between those and what most down here call a Pinellas. They get lumped the same, but I call the ones with a concave base and barbed shoulders like this one a Hamilton or Woodland Triangle. The longer one with the broken tip is what I would call a true Pinellas type...based from what I have seen and found and only an opinion.