Copper plate from pickle

I recently notices some difficult to remove dark spots on silver
when I was polishing. This was different from the usual firescale
that I deal with and much harder to remove. I remembered a
discussion on Orchid about how just a little bit of iron in your
pickle will cause copper to plate to the silver (or something like
that). I also remembered using the wrong tweezers to put a piece
into the pickle (just once). I washed the pickle crock and changed
the pickle solution and the problem went away. Thanks orchid for
helping me solve this problem. Rob

Rob Meixner