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Ore is natural rock or sediment that contains one or more valuable minerals, typically containing metals, that can be mined, treated and sold at a profit. Ore is extracted from the earth through mining and treated or refined, often via smelting, to extract the valuable metals or minerals. The grade of ore refers to the concentration of the desired material it contains. The value of the metals or minerals a rock contains must be weighed against the cost of extraction to determine whether it is of sufficiently high grade to be worth mining, and is therefore considered an ore.
Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe
3O
4, 72.4% Fe), hematite (Fe
2O
3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H2O), 55% Fe) or siderite (FeCO3, 48.2% Fe).
Bukit Besi is a small mining town in Dungun, Terengganu, Malaysia, famous for its high quality iron ore.
Ferrexpo plc is a Swiss-based commodity trading and mining company which is the third largest exporter of iron ore pellets in the world. Ferrexpo's operating base is in central Ukraine, where it operates three iron-ore mines and an iron ore pellet production facility. The company's trading office is located in London where it is listed on the London Stock Exchange and it is a constituent of the FTSE 250 Index and FTSE4Good Index.
Bayan'obo Mining District,, or Baiyun-Obo or Baiyun'ebo, is a mining town in the west of Inner Mongolia, People's Republic of China. It is under the administration of Baotou City, the downtown of which is more than 120 kilometres (75 mi) to the south.
Mining in the United Kingdom produces a wide variety of fossil fuels, metals, and industrial minerals due to its complex geology. In 2013, there were over 2,000 active mines, quarries, and offshore drilling sites on the continental land mass of the United Kingdom producing £34bn of minerals and employing 36,000 people.
Mining is an important industry in Pakistan. Pakistan has deposits of several minerals including coal, copper, gold, chromite, mineral salt, bauxite and several other minerals. There are also a variety of precious and semi-precious minerals that are also mined. These include peridot, aquamarine, topaz, ruby, emerald, rare-earth minerals bastnaesite and xenotime, sphene, tourmaline, and many varieties and types of quartz .
The Channar mine is an iron ore mine located in the Pilbara region of Western Australia, 17 kilometres south-east of Paraburdoo.
The Eastern Range mine is an iron ore mine in the Pilbara region of Western Australia, 10 kilometres south-east of Paraburdoo.
Mining in North Korea is important to the country's economy. North Korea is naturally abundant in metals such as magnesite, zinc, tungsten, and iron; with magnesite resources of 6 billion tonnes, particularly in the North and South Hamgyong Province and Chagang Province. However, often these cannot be mined due to the acute shortage of electricity in the country, as well as the lack of proper tools to mine these materials and an antiquated industrial base. Coal, iron ore, limestone, and magnesite deposits are larger than other mineral commodities. Mining joint ventures with other countries include China, Canada, Egypt, and South Korea.
The Shuichang mine is a large iron mine located in northern China in the Inner Mongolia. Shuichang represents one of the largest iron ore reserves in China and in the world having estimated reserves of 100 million tonnes of ore grading 35% iron metal.
The Sijiaying mine is a large iron mine located in northern China in the Inner Mongolia. Sijiaying represents one of the largest iron ore reserves in China and in the world having estimated reserves of 2.2 billion tonnes of ore grading 30% iron metal.
The Baoguosi mine is a large iron mine located in northern China in the Inner Mongolia. Baoguosi represents one of the largest iron ore reserves in China and in the world having estimated reserves of 107.9 million tonnes of ore grading 33.7% iron metal.
The Gongchangling mine is a large iron mine located in northern China in the Inner Mongolia. Gongchangling represents one of the largest iron ore reserves in China and in the world having estimated reserves of 760 million tonnes of ore grading 32.8% iron metal.
The Baizhiyan mine is a large iron mine located in northern China in the Inner Mongolia. Baizhiyan represents one of the largest iron ore reserves in China and in the world having estimated reserves of 179.7 million tonnes of ore grading 33.3% iron metal.
The Zhalanzhangzhi mine is a large iron mine located in central China. Zhalanzhangzhi represents one of the largest iron ore reserves in China and in the world having estimated reserves of 200 million tonnes of ore grading 45% iron metal.
The Pangjiapu mine is a large iron mine located in northern China. Pangjiapu represents one of the largest iron ore reserves in China and in the world having estimated reserves of 100 million tonnes of ore grading 45% iron metal.
The Wuenduermiao mine is a large iron mine located in northern China. Wuenduermiao represents one of the largest iron ore reserves in China and in the world having estimated reserves of 120 million tonnes of ore grading 36% iron metal.
The Tadong mine is a large iron mine located in northern China. Tadong represents one of the largest iron ore reserves in China and in the world having estimated reserves of 177 million tonnes of ore grading 25.2% iron metal.
The Jinling mine is a large iron mine located in northern China. With estimated reserves of 166.1 million tonnes of ore grading 51% iron metal, Jinling not only represents one of the largest iron ore reserves in China, but also in the world.
References
- ↑ "Mineral deposits of Northern Asia". docstoc.com. 2012. Retrieved 2013-07-10.