Quartzite is a nonfoliated metamorphic rock that formed by the metamorphism of pure quartz sandstone. So you could do some research for your state/area as to where the nearest areas of such sandstone would be.
Thanks kcm: this is not found in my area or state. I would think since its metamorphic that the color and content of the rock would make it easier to trace back to known sources. Like if I took these to a rock guy and he said... "I've seen these before, they came from .. .. .. .. " considering the color is spot on and the iron/bronze colored streak is identical as well. These two pieces look like they came from the same source.