Roller marks leave a stain and the striking process embeds/bonds it into the planchet metal. I doubt the stain will come off, or not fully. Again, the poster's coin IS NOT showing lines due to an improper alloy. They are from dirty rollers. A very basic magnifying loupe can prove it in 3 seconds. 1980 is a popular year to find this stain. It has no numismatic value and is worth 1 cent. Feel free to keep as an educational piece or just spend it. The claim those steaks are from improper alloys are dubious. Now the coin can have laminations because it is an improper alloy, but those steaks on that particular coin are roller marks.
Woodies can also have very brilliant colors. Here is one that I got pretty cheap because of the rev lamination. This 27 has some amazing colors in hand.
And you can very clearly see that the lines are not dead straight or parallel. In my mind, a true woody. Nice example
Yep, the true woodies look almost "marbled" compared to the straight even lines of the roller mark examples.
As @VistaCruiser69 said the marbled look is improper mix Found this one CRH a few years ago Spent most of its life in somebody’s collection then spent It’s doomed to circulate no more