If you are talking about the spatula that you used to weigh out aluminum chloride and forgot to clean immediately and now it is rusty and cruddy looking, then I use one of those green cleaning pads. It will restore the color, but it will also scratch the surface, so don't expect it to come back shinny. (You would have to buff them up again for that.)
I had all kinds of spatulas (and spoons, "borrowed from the cafeteria"). They were not all shiny, but they were all clean.