The quartz point is a dandy. You asked before about age. I'm not good with typology, but the side notches and serrations have a very Early Archaic look about them.
As others have said, the other is just a cool looking rock. If out of place, maybe someone long ago thought it was cool looking too and carried it around a while.
The flat quartzite cobble in the background, right is very nice. I've broken up many like that to make stuff out of!