One day not long after, Ed Schieffelin finally did discover valuable silver ore in the area.

VOA: special.2010.02.15

Iron ore, the main raw material of steel, changed the lakes area and the nation.

VOA: special.2009.11.11

As the nation's need for steel grew, bigger ships were built to carry iron ore.

VOA: special.2009.11.11

Iron ore production in the three months hit 32.45 million metric tons, up from 29.4 million tons a year earlier.

VOA: standard.2010.01.21

Last week Rio Tinto, the world's second-largest iron ore exporter, reported a 49 percent gain in fourth-quarter output.

VOA: standard.2010.01.21

Industrial analysts say iron ore prices could rise because of increasing demand as the global economy recovers.

VOA: standard.2010.01.21

Guinea is the world's largest producer of aluminum ore but is one of its poorest countries.

VOA: standard.2009.08.25

"We've seen good levels of output, and given that, for the bulk commodities in particular that's the iron ore and coal both steaming and coking those prices are looking strong.

VOA: standard.2010.01.21

The company's output of iron ore, as well as copper, zinc and nickel, surged in the last three months of 2009 because of strong demand from Chinese carmakers and construction companies.

VOA: standard.2010.01.21

China's imports of iron ore in 2009 rose by more than 40 percent, a buying spree economists say was driven in part by efforts to stockpile supplies while global prices are low.

VOA: standard.2010.01.21