FeCl\(_2\) is not a naturally occurring iron ore; it is a compound that can be formed when iron minerals react with hydrochloric acid. The main naturally occurring iron ores are minerals like hematite (Fe\(_2\)O\(_3\)), magnetite (Fe\(_3\)O\(_4\)), and limonite (FeO(OH)⋅nH\(_2\)O)). However, a natural mineral called lawrencite, which is a natural form of ferrous chloride ((Fe,Ni)Cl\(_2\)), does exist, but it is rare and typically found in meteorites.