Are all/most meteorites metallic/magnetic? If so, what are the usual types. I ask because I have a good lead on where one might be (under water) and I'd like to try to get it. But I need to know if I need a magnet, scuba gear, metal detector etc. Also, info or location on size and rates of speed for meteors would be appreciated. Thanks, 1st fuec0@towanda.sylvaniadot com