Two-tone Hornfels

I thought this flake might be of interest to people who like stone tools. Found in Concord, this material sure does not come from around here. I think it is hornfels ("horn stone") but I have never seen beige coloring before, let alone this two-tone combo.

For whatever it is worth, in the past the site contained middle-archaic diagnostic "Stark" points as well as some things that look more "paleo". About 200 yards from the Assabet River, in a cornfield.