Lets have a look at a brief review of
limonite (FeO(OH).n(H2O)), goethite (FeO(OH)) or siderite (FeCO3). The compound Hematite is also known as "natural ore". The name refers to the early years of mining, when certain hematite ores contained 66% iron and could be fed directly into iron making blast furnaces. Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel.About 98% of the mined iron ore is utilized to make steel. The book deals with all these issues relating to iron ore and where and how this iron ore is mined.