This seem to be an alloy, so take it to a pawn shop or similar and let them do a XRF, then you will know.Okay I'll try this once more. In the basement of a burned house this was collected. It was the only thing in the room and the room was from where the fire started. Basement, no pipes of any kind, ceramic floor. 15lbs. I'll attach photos of what it looked like when found , when reformed, and what small pieces of it look like after torching them for about half hour. Also what some of those pieces look like cut up. Is it possible to this chunk of lead has gold in it?