The short statement you made and that I 'bolded and colored' hints they may not even be scratches, but transfers of the copper from the rivets to the gun. Using a magnifying glass and a good light, look closely and you might just be pleasantly surprised. Let us know.I just started to carry my 1911 in a Yaqui slide holster and discovered that the slide is getting scratched by the rivets on my denims. Any ideas how to polish them out. They're very fine and look brown. Thanks!