Strange magnetic shiny rocks (TU24 meteorites?)

Ok Glp this is some strange shit that my nephew just brought to my attention. I have been a regular here at GLP since 2004, I used to have an Avatar whent it was free(Bear. Anyways I didn't pay up when it started costing money. Well My nephew was cleaning out my flowerbeds and he found 8 differeent shiny magnetic rocks with strong magnet fields. They are all different shapes and we can attract them from over 10 feet. Now I clean my beds every year and replace the mulch and there was never any thing like this. I have someone look at them and I will photograph them later and upload them to photobucket. I live in eastern Virginia. Anybody got any ideas????