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Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet. Ferromagnetic materials are noticeably attracted to a magnet, which is a consequence of their substantial ...
The Benson Mine is an iron-ore mine located near Star Lake, a village in the southern St. Lawrence County, New York. The ore body at Benson Mine was discovered in 1810 by engineers conducting a survey for a new military road from Albany to Ogdensburg. [1] In the 1950s, the mine was considered the largest open pit iron-ore mine in the world.
The Marquette Iron Range is a deposit of iron ore located in Marquette County, Michigan in the United States. The towns of Ishpeming and Negaunee developed as a result of mining this deposit. A smaller counterpart of Minnesota's Mesabi Range , this is one of two iron ranges in the Lake Superior basin that are in active production as of 2018.
It is one of the oxides of iron, and is ferrimagnetic; [6] it is attracted to a magnet and can be magnetized to become a permanent magnet itself. [ 7 ] [ 8 ] With the exception of extremely rare native iron deposits, it is the most magnetic of all the naturally occurring minerals on Earth.
Geology of northern Lincolnshire. Near surface iron ore formations in red (NEIMME Transactions, v.24, 1875) It is thought that the iron deposits in Lincolnshire were worked sometime before the 19th and 20th century exploitations – forges at Stowe are mentioned in the Domesday Book, and archaeological evidence has been found of iron working at Scunthorpe.
In 1750 the first discovery was made of a rich superficial deposit of iron ore at the south end of Sterling Mountain, in the town of Monroe, New York. In the following year, Ward & Colton erected at the outlet of mine and Sterling Pond , in the extreme southern part of Warwick, near the Monroe line, a charcoal blast-furnace, which was the first ...