Lori Ann Rambough Sommore

ferrous or ferric

are called ferrous or ferric those containing iron as a base, although may also contain small amounts of others.

Main fields iron ore

Major iron yacimeintos Spain are Polanco (Bilbao), Spell (Almería), Ojos Negros (Teruel), Jerez-Villafranca, etc. Today and virtually none of them are exploited, because it is more profitable to import minerals containing it.

countries of iron ore producers are Russia (26%), China, Canada (6%), Brazil (7%), Australia (11%), U.S. (8%). Due to low mineral prices and rising of its extraction, it tends to open to mine, the most important are: Rio Doce (Brazil), Cerro Bolivar (Venezuela) and Miferma (Mauritania).

iron ore types

There are a variety of iron ore but now only take usually magnetite, hematite, limonite and siderite. These minerals have the advantage of being rich to contain a high proportion of pure iron.

magnetite

Hematites

limonite

siderite