I'm new to scrapping. I've starting a couple of buckets separating out my clean copper from tin plated and other stuff. This morning I ran a magnet across my tin plated stuff to make sure I didn't have any ferrous wire in the mix (I was suspicious of some uninsulated ground wires in some power cords). Just for grins I thought I'd run the magnet over the 'clean copper'. To my surprise I picked up a piece that came out of a coax cable. If this pic attaches correctly, that's a magnet hanging on the side of the one wire. Looks just like the other, but I can see on the cut end that the one has a gray center with a copper outer plating.
Is this common? TIA
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