It is called barter, but be careful. First of all, you may have no way of knowing whether those gold bricks are only gold plated. Second, if there is a sales tax (or income tax) involved, the tax people want their cut of the sales or profits from the barter.
On the upside, gold and silver should appreciate nicely due to inflation. I'd hang onto it if you can, it will hold value when our dollars are worthless.
By the way, gold and silver prices fluctuate, you can look up current prices here
http//www.kitco.com