Every week when I go out, I look for gold. Many times people have gold mixed in the jewelry they are selling, and they don’t even know it! Always have a jeweler’s loupe with you, they are cheap and can be purchased online. I recommend a 30x. Remember, ask the price BEFORE you loupe! Also, bring a small, but strong magnet. Real gold will not stick to a magnet. If it’s marked gold but it sticks-it’s a trick! Here’s a good tip- KP means karat plumb, not karat plated. It means the gold marked KP is weighed to be exactly the karat marked. I have found many pieces of gold that were left behind because others thought it was plated! Good luck!