Hi guys, I have been working on building a shaker table for the best part of a year in my free time. It seems to do a nice job catching all the sulfides and heavy things that i run on it. Now here is the thing i have smelted a couple buttons with the cons run from the table adding about 2 grams of copper mixed in. Would anyone know if this looks right the button has a slight yellow shine. how would i go about getting this tested for gold content? any help would be much appreciated thanks guys