Hi: I have some nice old and not so old silver filigree jewelry. It
is sort of dark gray - I believe some pieces may have been chemically
oxydized to get that look. I would like to clean them up and achieve
that almost white silver color/glow some of the other pieces have.
How can I do that - I tried silver cleaners (Tarnex?), but they are
obviously too weak for the purpose and it would hurt the metal if I
were to leave the jewelry in for too long. I am new to this list and
new to jewelry in general and would appreciate some advice on this