- Iron processing | Definition, History, Steps, Uses, Facts - Britannica
iron processing, use of a smelting process to turn the ore into a form from which products can be fashioned Included in this article also is a discussion of the mining of iron and of its preparation for smelting Iron (Fe) is a relatively dense metal with a silvery white appearance and distinctive magnetic properties
- Iron processing - Ores, Smelting, Refining | Britannica
Mining and concentrating Most iron ores are extracted by surface mining Some underground mines do exist, but, wherever possible, surface mining is preferred because it is cheaper Lumps and fines Crushing
- mining - Kids | Britannica Kids | Homework Help
The oldest copper mines are in Egypt Ancient Egyptians dug these mines about 7,000 years ago By 5,000 years ago, people were also mining tin and combining it with copper to create bronze This metal was important for making sturdy, long-lasting weapons and tools Later peoples mined iron to make even stronger tools and weapons
- Missouri - Mining, Agriculture, Manufacturing | Britannica
Iron mining in Missouri began in the early 19th century and continued reasonably steadily until the late 20th century Fluctuation in global iron prices and environmental concerns have allowed only intermittent production since the mid-1980s
- mining - Students | Britannica Kids | Homework Help
The kinds of minerals dug from the Earth vary widely They include the ores of iron, aluminum, chromium, tungsten, gold, silver, copper, coal, diamonds, lead, nickel, platinum, tin, and zinc Some of the less familiar products taken from mines are arsenic, antimony, asphalt, cobalt, molybdenum, sulfur, and vanadium
- Mining - Underground, Safety, Techniques | Britannica
Study how iron ore is mined with explosives and crushed and concentrated with remote-controlled machines Iron ore mining at Kiruna, Sweden (more) See all videos for this article
- Mesabi Range | Iron Mining, Iron Ore, Minnesota | Britannica
Mesabi Range, largest of three iron ranges in northern Minnesota, U S (the others are Vermilion and Cuyuna) It extends 110 miles (180 km) from Babbitt (northeast) to Grand Rapids (southwest) at heights varying from 200 to 500 feet (60 to 150 metres), with a high point of 2,000 feet (610 metres)
- Algeria - Mining, Oil, Gas | Britannica
Algeria - Mining, Oil, Gas: The main mining centres are at Ouenza and Djebel Onk near the eastern border with Tunisia and at El-Abed in the west Extensive deposits of high-grade iron ore are worked at Ouenza, and major deposits of medium-grade ore exist at Gara Djebilet near Tindouf
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