glue coated the magnet's surface. I'm not sure there's enough left to
> hold the magnet to the rock chip.
>
> I guess there's some iron in J-B Weld. And those little magnets are > pretty strong.
Dang it, now I have to go get some rare earth magnets and some J-B Weld and try to glue them to various things just to see if it's really true. :)