The one on the left looks like a spotted form of rhyolite to me as well. On that one the short broad stem, it being made of rhyolite, and what looks like it could be the remains of shallow serrations, makes me want to suggest a Kirk stemmed, phasing into Bare Island type and era point. The two on the right look like nice varieties of quartzite to me also. The one in the middle also having the short broad stem, being quartzite, and having the narrower blade, makes me want to guess it is more of a pure Bare Island type point than the one on the left. I would guess that in your area the more southern Guilford Stemmed, and more northern Bare Island types overlap within the same time periods, and are probably the same points, along with the older Holmes point designation. The one on the right with the broader blade and expanded stem or "notched stem" base is probably of the late archaic Brewerton age, that seems to have then evolved into the broadspear types. I would guess anywhere from 6500 YBP to 3000YBP with them aligned oldest, to less old, left to right. Nice points they are.