magnetic chips

[Baja Bob]

just put a few computor chips through my rock crusher, these were ceramic, ground them up easily, took a magnet and picked up most of the gold 90%, if these pieces are gold over iron or steel, is there a preferred way to treat them? thanks Baja Bob

 

[lazersteve]

Bob,

I usually dissolve iron with hot HCl. The other mineral acids should work also.

Steve