I was doing an experiment on gold recovery. When I added some gold platted pins to battery acid nothing seemed to happen.I impatiently added some duluted hydrochloric acid labeled 20%, immediately there was a reaction that produced heat, bubbles and and a gas. I saw all aluminum dissolving giving the solution a gray colour and all gold platting disappearing away. It is now 2 days since I sat up the apparatus and the reaction is still going on but now very slow. I have tried to look through the glass for speckles of gold but all what I can see is gray dust settling at the base of the container and and silver particles in the solution. I would like to know if I dissolved the small gold and if so how can I recover it.