OK, so I have this big water treatment plant around me and there is a huge pit where the soil is deep orange and filled with rust. I know its rust because the people who work there told me its rust. If you just touch it your fingers are orange. So I went down there with a plastic bag and gathered up some chunks of soil that were dry and orange. I was wondering how i could extract the iron oxide(rust) from it so there is no dirt in it and I have a pile of rust. I want to use it for thermite. Thanks alot!