For other subjects related to mine, see Mine (disambiguation). For other grinds, see Grind (disambiguation). Mine Grind is a hard difficulty stamp in Club Penguin Rewritten. It can be obtained by grinding around 8 corners in Cart Surfer. Gallery The stamp being earned.As seen in a Stamp Book.Add a photo to this gallery Retrieved from "https://club-penguin-rewritten.fandom.com/wiki/Mine_Grind_Stamp?oldid=182133" Categories: Stamps Hard Stamps Game Stamps Cart Surfer Stamps Cart Surfer Community content is available under CC-BY-SA unless otherwise noted.