Hi my name is Danny... i found these today while metal detecting.. they ring strong in the 25 cent silver side garrett ace 250. I live in canada deep in the wood at first when i found them they were dark grey/green. They were not in the same place but not far from each other both of them sink in water. The big chunk is kinda heavy and have a ring bell sound when hit. Its might be Lead.... but when i rub sand paper on them they become shiny so i wonder what it is. I hope you can help