I found this specimen on Bradford Beach, Milwaukee, WI 10-10-10 with my recently purchased Garrett Ace 250 under 12 inchs of sand. I had it x-rayed and the results showed 10% Fe, 1% Ti, 3894 ppm Cu, 2911 ppm Co, 2342 ppm Mn, 1034 ppm Sn, 533 ppm Ni, 215 ppm Rb, 162 ppm Ag, 147 ppm Zn, 61 ppm Pb, 41 ppm Mo.