Rocks, Minerals, Fossils and Earth Science Supplies From Rockman's Trading Post (www.rocksandminerals.com & www.davidthompsonbook.com) TEACHERS, STUDENTS, HOME SCHOOLERS You've... found THE ONE-STOP SHOP for all your earth science needs. If you are looking for rocks, minerals or fossils, we have a great selection including collections for the classroom... or specimens for your personal enjoyment. In addition to our rock (igneous, metamorphic and sedimentary), mineral and fossil specimens and collections, we also have some very unique items...