A bit of a silly question, but I want to buy stone chips / aggregate stones. I have a handful of the colour I want but not sure where they are from or the name of the colour. I’m a bit nervous going into Travis Perkins or Jewson… can I just go up to the counter and ask to see if they have something similar? Not used to dealing with shops where you can’t just walk about. I’ve looked online but it’s hard to tell if they’re the right colour.