How to use Iron-ore in a sentence
It lies in the midst of the great red and brown hematite iron-ore deposits of the Mesabi Range - the richest in the Lake Superior district - and the mining and shipping of this ore are its principal industries.
It was along the coast of North Carolina that Europeans in 1585 made the first discovery of iron ore within the present limits of the United States.
Niriz was formerly known for its manufacture of steel from iron ore brought from Parpa, 40 m.
Ashland has an excellent harbour, has large iron-ore and coal docks, and is the principal port for the shipment of iron ore from the rich Gogebec Range, the annual ore shipment approximating 3,500,000 tons, valued at $12,000,000, and it has also an extensive export trade in lumber.
There is some iron ore in the eastern and south-eastern parts of the state, and the mining of it was begun early in the 19th century; but the output decreased from 254,294 long tons in 1889 to only 26,585 long tons (all carbonate) in 1908.Advertisement
Iron-ore is found at ZOptau, Blansko, Adamsthal, Witkowitz, Rossitz and Stefanau.
The mineral wealth of the Cyclades has hitherto been much neglected; iron ore is exported from Seriphos, manganese and sulphur from Melos, and volcanic cement (pozzolana) from Santorin.
In the Tertiary region are found small quantities of iron ore and an indifferent brown coal.
Cleveland is the largest ore market in the world, and its huge ore docks are among its most interesting features; the annual receipts and shipments of coal and iron ore are enormous.
The discovery of iron ore in the Lake Superior region made Cleveland the natural meeting-point of the iron ore and the coal from the Ohio, Pennsylvania and West Virginia mines; and it is from this that the city's great commercial importance dates.Advertisement
What Cardiff lacks is a corresponding import trade, for its imports in 1906 amounted to only 2,108,133 tons, of which the chief items were iron ore (8 9 5,610 tons), pit-wood (303,407), grain and flour (298,197).
Minnesota ranked first among the states in 1902 in the production of iron ore.
Mining is only of slight importance, small quantities of coal and iron-ore being extracted in the Alpine foothill region; graphite is found near Miihldorf.
These hills contain good building stone for ornamental architecture, and in some of them iron ore is abundant.
It is the shipping place for the iron ore mined at Gellivara, 127 m.Advertisement
The material has been considered by some to be magnetic iron ore and by others oxide of manganese.
Timber, pig-iron and iron ore are the leading imports, and coal, produce and iron the chief exports.
The mining of iron ore was begun about 1767 in the vicinity of the present Cranston, and much of the metal was used in the making of cannon during the War of Independence, but the supply was soon exhausted.
Lead ores (chiefly argentiferous galena) and building stone are found, and iron ore is distributed over the hilly country.
Attempts made to work the galena in 1878-79 and 1900 were abandoned, and the iron ore is little worked.Advertisement
The chief exports are linen, whisky, aerated waters, iron ore and cattle.
The town lies between the valleys of the Ehen and its tributary the Dub Beck, in a district rich in coal and iron ore.
Coal, textiles and iron and steel goods figure prominently amongst the imports, and emery, leather, lemons, sponges, flour, valonia and iron ore amongst the exports.
The country is rich in iron ore.
There are blast furnaces in the neighbouring parish of Asfordby for the smelting of the abundant supply of iron ore in the district.Advertisement
They carried coal, wood and grain, also iron-ore, Stinnes having begun to manufacture iron and steel.
In 1750 the mining of iron ore was begun near Monroe, Orange county.
There are extensive deposits of iron-sand on the west coast of the North Island, and of iron ore at Parapara in Nelson.
Of other minerals gold has been found, but up to 1909 was not worked; iron ore exists near Kroonstad and Vredefort, but it also is not worked.
Escanaba has a water front of 8 m., and is an important centre for the shipment of iron-ore, for which eight large and well-equipped docks are provided - there is an ore-crushing plant here; considerable quantities of lumber and fish are also shipped, and furniture, flooring (especially of maple) and wooden ware (butter-dishes and clothes-pins) are manufactured.Advertisement
The yield of iron ore is almost one million tons annually, while gold, silver, tin, graphite and salt are also mined.
The city is the seat of a Roman Catholic bishopric. Both coal and iron ore abound in the vicinity, and the city has numerous manufacturing establishments.
From 1722 until the War of Independence the iron-ore product of North and West Maryland was greater than that of any of the other colonies, but since then ores of superior quality have been discovered in other states and the output in Maryland, taken chiefly from the west border of the Coastal Plain in Anne Arundel and Prince George's counties, has become comparatively of little importance-24,367 long tons in 1902 and only 8269 tons in 1905.
It also enters (as carbonates) into the composition of many minerals, such as chalk, dolomite, calcite, witherite, calamine and spathic iron ore.
The mineral wealth of Salzburg includes salt at Hallein, copper at Mitterberg, iron-ore at Werfen, marble in the Untersberg region and small quantities of gold near the Goldberg in the Rauris valley and at Bockstein in the Gastein valley.Advertisement
Scranton better grades of iron ore and of limestone were procured, and within a decade a rolling mill, a nail factory and a manufactory of steel rails were established, and adequate facilities for railway transportation were provided.
Smelting, brewing and iron-founding are also carried on, as well as the manufacture of portable steam-engines, and iron ore is raised in the vicinity.
One of these is about Lake Superior, where the formations have attracted attention on account of the abundant iron ore which they contain.
In 1907 iron ore was mined for blast-furnace use in twenty-nine states only, but the ore occurs in almost every state of the Union.
The iron ore (found chiefly in the region of which Birmingham is the centre) is primarily red haematite and (much less important) brown haematite; though as regards the latter Alabama ranked first among the states of the Union in 1905 (with 781,561 tons).Advertisement
Massillon is built among hills in a part of the state noted for its large production of coal and wheat and abounding in white sandstone, iron ore and potter's clay.
The mineral wealth of Silesia is great and consists in coal, iron-ore, marble and slate.
Pennsylvania is by far the most important coalproducing state in the Union, and as much of the iron ore of the Lake Superior region is brought to its great bituminous coal-field for rendering into pig-iron, the value of the state's mineral products constitutes a large fraction of the total value for the entire country; in 1907, when the value of the mineral products of the state was $ 6 57,7 8 3,345, or nearly one-third that of all the United States, and in 1908 when the total for the state was $473,083,212, or more than one-fourth that of the whole United States, more than fourfifths of it was represented by coal and pig-iron.
There are deposits of various kinds of iron ore in the eastern, south-eastern, middle and some of the western counties, and from the middle of the 18th century until near the close of the 19th Pennsylvania.
In 1908 the entire iron-ore product of the state, amounting to 443,161 long tons, was not 1.3% of that of the United States, but the production of the magnetite-ore alone (343,998 long tons) was more than onefifth that of all the United States.Advertisement
So long as charcoal only was used in the furnaces (until about 1840) and during the brief period in which this was replaced largely by anthracite, the industry was of chief importance in the eastern section, but with the gradual increase in the use of bituminous coal, or of coke made from it, the industry moved westward, where, especially in the Pittsburg district, it received a new impetus by The introduction of iron ore from the Lake Superior region.
By the operation of meteoric agencies, iron pyrites readily pass into limonite often with retention of external form; and the masses of "gozzan" or "gossan" on the outcrop of certain mineral-veins consist of rusty iron ore formed in this way, and associated with cellular quartz.
Deposits of brown iron ore of great economic value occur in many sedimentary rocks, such as the Lias, Oolites and Lower Greensand of various parts of England.
Bog iron ore is an impure limonite, usually formed by the influence of micro-organisms, and containing silica, phosphoric acid and organic matter, sometimes with manganese.
Argillaceous brown iron ore is often known in Germany as Thoneisenstein; but the corresponding term in English (clay iron stone) is applied to nodular forms of impure chalybite.Advertisement
It probably represents the partial dehydration of limonite, and by further loss of water may pass into haematite or red iron ore.
In the mountains near Nanking, coal, plumbago, iron ore and marble are found.
The mineral resources of Holland give no encouragement to industrial activity, with the exception of the coal-mining in Limburg, the smelting of iron ore in a few furnaces in Overysel and Gelderland, the use of stone and gravel in the making of dikes and roads, and of clay in brickworks and potteries, the quarrying of stone at St Pietersberg, &c. Nevertheless the industry of the country has developed in a remarkable manner since the separation from Belgium.
Where iron ore was found, the local smith, the Waldschmied, converted it with the charcoal of the surrounding forest into the wrought iron which he worked up. Many farmers had their own little forges or smithies to supply the iron for their tools.
Impurities.-The properties of iron and steel, like those of most of the metals, are profoundly influenced by the presence of small and sometimes extremely small quantities of certain impurities, of which the most important are phosphorus and sulphur, the former derived chiefly from apatite (phosphate of lime) and other minerals which accompany the iron ore itself, the latter from the pyrite found not only in most iron ores but in nearly all coal and coke.
What Constitutes an Iron Ore.
The cost of iron ore is likely to rise much less rapidly than that of coal, because the additions to our known supply are likely to be very much greater in the case of ore than in that of coal, for the reason that, while rich and great iron ore beds may exist anywhere, those of coal are confined chiefly to the Carboniferous formation, a fact which has led to the systematic survey and measurement of this formation in most countries.
In short, a very large part of the earth's coal supply is known and measured, but its iron ore supply is hardly to be guessed.
On the other hand, the cost of iron ore is likely to rise much faster than that of the potential aluminium ores, clay and its derivatives, because of the vast extent and richness of the deposits of this latter class.
The annual production of British iron ore reached 18,031,957 tons in 1882, but in 1905 it had fallen to 14,590,703 tons, valued at 3,482,184.
She exports about 90% of all the iron ore which she mines, most of it to England.
France draws most of her iron ore from her own part of the great Minette ore deposit, and from those parts of it which were taken from her when she lost Alsace and Lorraine.
Russia's most valuable ore deposit is the very large and easily mined one of Krivoi Rog in the south, from which comes about half of the Russian iron ore.
To put the iron contained in iron ore into a state in which it can be used as a metal requires essentially, first its deoxidation, and second its separation from the other mineral matter, such as clay, quartz, &c., with which it is found associated.
If the pig iron is to follow path 2, the purification which converts it into wrought iron or steel consists chiefly in oxidizing and thereby removing its carbon, phosphorus and other impurities, while it is molten, either by means of the oxygen of atmospheric air blown through it as in the Bessemer process, or by the oxygen of iron ore stirred into it as in the puddling and Bell-Krupp processes, or by both together as in the open hearth process.
The oxygenated metal is prepared by melting cast iron diluted with as much scrap steel as is available, and oxidizing it with the flame and with iron ore as it lies in a thin molten layer, on the hearth of a large open-hearth furnace; the thinness of the layer hastens the oxidation, and the large size of the furnace permits considerable frothing.
Coal and iron ore abound in the vicinity, and the city, manufactures iron, steel, tin plate, electrical and telephone supplies, shovels, boilers, leather, flour, brick and tile, salt, furniture and several kinds of vehicles.
The province supplies over two-thirds of the iron ore mined in the Dominion, but much is still imported.
Tin ore of excellent quality is found in the province of Bauchi, alkali salts are abundant in Kano province, iron ore and red and yellow ochres are found in Kontagora and other provinces, kaolin (china clay) and limestone in the west central regions.
More than one-third of the iron ore (that chiefly worked being Black Band Ironstone) comes from mines which also yield coal.
There are numerous iron-ore mines in the parish, and ironworks at Askam-in-Furness, in the northern part of the district.
Excellent iron-ore occurs in the crystalline rocks south of the Damuda river as also in many other parts of India.
There are extensive deposits of iron ore (magnetite and hematite) in the province of Bulacan, Luzon.
In nearly every county there are veins of iron ore of varying extent and quality, the most important being at Hartville, Laramie county, Iron Mountain, Albany (disambiguation)|Albany county, the Seminole and Rawlins in Carbon county.
The iron ore from this district obtained the grand prize at the World's Fair held in Chicago in 1893, in competition with iron ores from all parts of the world.
Most of the country is forest, producing only timber and lac but said to be rich in iron ore.
The product of iron ore in 1908 was 692,223 long tons, valued at $1,465,691.
The annual output of iron ore in the United Kingdom has on the whole decreased since 1882.
In 1888 the imports of iron ore amounted to 3,562,071 tons, in 1898 to 5,468,396 tons, in 1899 to 7,054,578 tons, in 1900 to 6,297,953 tons, in 1901 to 5,548,888 tons and in 1909 to 6,361,571 tons, of which the bulk was imported from Spain.
The iron-mining industry is of high importance, the output of iron ore forming by far the largest item in the total output of ores and minerals.
Thus in 1902 the total output was nearly 32 million tons, of which 2,850,000 tons were iron ore.
The output of iron ore has greatly increased; in1870-1880it averaged annually little more than one-quarter of the amount in 1902.
The deposits of iron ore are confined almost wholly to the extreme north of Norrland, and to a midland zone extending from the south of the Gulf of Bothnia to a point north of Lake Vener, which includes the Dannemora ore fields in the eastern part.
It is the chief outlet for the Spanish trade in esparto grass, and for the iron ore and other mineral products of the neighbourhood.
Both coal and iron ore were formerly worked, but the coal is exhausted and the ore unsuitable for modern processes.
Specular iron ore occurs in the form of brilliant metallic scales on many lavas, as at Vesuvius and Etna, in the Auvergne and the Eifel, and notably in the Island of Ascension, where the mineral forms beautiful tabular crystals.
Micaceous iron ore consists of delicate steel-grey scales of specular haematite, unctuous to the touch, used as a lubricant and also as a pigment.
Throughout its whole extent it yields valuable building-stone, and in the Yorkshire moors the great abundance of iron ore has created the prosperity of Middlesbrough, on the plain below.
There is also a considerable working of brown iron ore at various points in Lincolnshire, Northamptonshire and Leicestershire; with further workings of less importance in Staffordshire and several other districts.
The metal-working industries also follow a geographical distribution, mainly governed by the incidence of the coal-fields, as well as by that of the chief districts for the production of - iron-ore already indicated, such as the Cleveland and Durham and the Furness districts.
Palestine is the trade centre of a district which produces cotton, timber, fruit (especially peaches), an excellent grade of wrapper tobacco, petroleum, iron-ore and salt.
Although Maine has no coal and only a very small amount of iron ore within her borders for the encouragement of manufacturing, yet the abundance of fine timber and the numerous coves, bays and navigable streams along or near the coast promoted ship-building from the first, and this was the leading industry of the state until about the middle of the 19th century, when wooden ships began to be supplanted by those of iron and steel.
It lies in the midst of the great Mesabi iron-ore deposits of the state; in 1907 forty iron mines were in operation within io m.
The railways have a heavy tonnage of coal, coke and iron and steel products, and a large portion of the iron ore that is produced in the Lake Superior region is brought to Pittsburg.
The apparently inexhaustible supplies of iron ore in southern Utah, and especially in Iron county, had been little worked up to 1910 on account of their inaccessibility.
The principal freight shipped eastward consists of flour, wheat and other grains, through Duluth - Superior from the United States, and through Fort William - Port Arthur from the Canadian prairies; copper ore from the mines on the south shore; iron ore in immense quantities from both shores, ?
Ashtabula has an excellent harbour, to and from which large quantities of iron ore and coal are shipped.
More iron ore is received at this port annually than at any other port in the country, or, probably, in the world; the ore is shipped thence by rail to Pittsburg, Youngstown and other iron manufacturing centres.
A rich deposit of iron ore was discovered close to Kerch in 1895, and since then mining and blasting have been actively prosecuted.
There are extensive quays, from which is shipped the iron ore from the rich districts traversed by the line.
The production of iron ore in the Gogebic and Menominee ranges on the upper Michigan border is important.
The basalt again broke out, through dikes that cut even the Mourne granite, and some of the best-known columnar masses of lava overlie the red deposits of iron-ore and mark this second basaltic epoch.
There is lignite in the Dongola mudiria and iron ore is found in Darfur, southern Kordofan and in the Bahr-el-Ghazal.
Iron ores (60 to 70% of iron), copper ores, colours, brown coal, graphite, slate, and lithographic stone are obtained - nearly 2,000,000 tons of iron ore annually.
The largest item in the freights is iron ore on vessels bound down.
Petroleum, coal, and iron-ore abound in the neighbouring region, and the city has a considerable trade in these and in its manufactures of chairs, leather, flour, carriages, wagons, boats, boilers, bricks and glass.
In 1908 the product was 6,199,171 tons, valued at $7,118,499 Iron ore is found and has been mined in many places in the state.
The output of iron ore was 874,542 tons (valued at $1,123,527) in 1902, when Tennessee ranked fifth among the iron ore producing states.
Oxide of chromium and chrome iron ore have been proposed as refractory crucible materials.
Not far to the south at Kettleness, there were two mines, one producing alum and the producing iron ore.
The new discovery of iron ore on their doorstep prompted them to build Teesside's first blast furnace in 1851.
For more than 120 years the site processed imported English iron ore using locally produced charcoal, finally closing down in 1876.
Principal Inclusions Rounded limestone (including oolite ), sparse rounded quartz and red iron ore.
A fire was then lit inside the furnace and hot layers of charcoal and crushed iron ore were added alternately.
The early miners found plenty of iron ore at or near to the surface of the ground.
It is believed that iron ore has been mined and smelted in the area since Norman times.
At the start of the war, Germany imported about 10 million tons of iron ore from Sweden.
The expanded internal railroad system was used for the transportation of coal, coke, iron ore and limestone.
Vessels go to Porman to land coke and coal, and to load iron ore and lead.
Others, such as Paros, are mainly composed of marble, and iron ore occurs in some.
Very little pig iron is tries US made, most of the iron ore being exported, and iron manufactured consists of old iron resmelted.
The mineral had, however, been earlier known as a blue powdery substance, called "blue ironearth," met with in peat-bogs, in bog iron-ore, or with fossil bones and shells.
The celebrated iron ore of Elba is of Tertiary age and occurs indifferently in all the older rocks.