Iron bearing rocks hi-res stock photography and images - Alamy
Taconite. Taconite is an iron-rich (20-30%) sedimentary rock, in which iron- bearing layers alternate with quartz, chert, or carbonate. The iron conten Stock Photo - Alamy
Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis
Iron bearing rocks hi-res stock photography and images - Alamy