So you can wipe the tip of the striker too? How do you clean slate if it looks like it’s got a finger print or some sort of spot on it
Use a piece of scotch Brite for your slate and striker tips , no sandpaper ... back and forth east and west.. play downward on the slate top to bottom direction ...
I always stroke the Scotch Brite in one direction, not back and forth, which will fill the ridges with the dust from the first stroke !!! Also, I always carry a small ziplock bag with a cotton ball soaked in alcohol to clean my aluminum/ceramic surfaces while hunting.