These pictures are from a friend on a sea glass forum and she asked if it was an arrowhead. She is from Tracy's Landing, MD and that is all I know about where it was found. It appears the stone material looks like it may be a softer or porous rock and appears to be well worn. If she found this walking a beach, the condition would be consistent with beach wear and a stone bouncing around in the surf could end up with flake scars. But what I am looking at is how the scares seem to be laid out in a pattern that looks consistent with someone running a line of flakes. I have added a picture with what I believe to be flakes outlined. I know it is the general shape of a point, but that alone isn't enough to say it is an arrowhead. What do you think?