How to attach stone to necklace like this? Answered

This is fossilized reptile poop or Coprolite (I think). I caped it with a 1/2" copper cap and soldered a 1/4" piece of tube on the top. I then used gel super glue to mount it. Who says you cant polish a turd?

I don't know much, but it kind of looks like they used copper tape and solder.