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what type of rock is iron ore

Iron Ore Mining Techniques, Metal Extraction, Types of ...

Iron ores are rocks and mineral deposits from which clanging iron can be reasonably extracted. Iron ore mining is classified into two categories- manual mining and mechanized mining methods. Haematite and magnetite are the most commonly found iron ore minerals. Deposits of iron ore such as haematite containing iron oxide are found in sedimentary rocks from which the …

The Geology of Rare Earth Elements

In general, however, rare earth elements-bearing pegmatites are generally small and are of economic interest only to mineral collectors. Other Rare Earth Deposit Types. The iron-oxide copper-gold type of deposit has been recognized as a distinct deposit type only since the discovery of the giant Olympic Dam deposit in South Australia in the 1980s.

Laterite - Wikipedia

Laterite is a soil and rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by intensive and prolonged weathering of the underlying parent rock.Tropical weathering (laterization) is a prolonged process of chemical weathering …

ore | National Geographic Society

This type of ore genesis is called a surficial process. Ore can also fall to Earth as rocky debris from elsewhere in the solar system. These pieces of debris, entering the atmosphere as shooting stars, are called meteorites. Many meteorites contain large amounts of iron ore. Ore is a nonrenewable resource.

Ironstone - Wikipedia

Ironstone is a sedimentary rock, either deposited directly as a ferruginous sediment or created by chemical replacement, that contains a substantial proportion of an iron compound from which iron can be smelted commercially. This term is customarily restricted to hard coarsely banded, nonbanded, and noncherty sedimentary rocks of post ...

What are the types of iron ore? - Quora

Jun 17, 2016· Types of iron ore: Hematite Hematite gets its name from the Greek word for blood, haima, because of its reddish color. This is one of the types of iron ore that has very high iron content, and although the iron content of hematite itself is lower ...

Missouri Minerals - Virtual Museum of Geology

Dr. Fred Pough, author of the famous "A Field Guide to Rocks and Minerals", while attending Washington University in St Louis wrote his Master's Thesis on iron ore mines in Missouri (mainly in Franklin County). Fine specimens may still be found in mine dumps and road cuts.

what type of rock is iron ore? | Yahoo Answers

Nov 19, 2011· Iron ore is either magnetite, siderite, or hematite (or sometimes a mixture of hematite, siderite and magnetite) mixed with various non-valuable minerals like quartz, calcite, and apatite. Depnding on the type of ore deposit, most iron ore deposits are hydrothermal or chemical precipitates, so they can be classified as igneous, metamorphic, or ...

Ore Deposits, Kentucky Geological Survey, University of ...

Zinc deposits in the Knox Group of south-central Kentucky and Middle Tennessee are classified as Mississippi Valley-type (MVT) ore deposits... Read more. Iron Ore. ... Two types of rocks in the world are known to contain diamonds - kimberlites and lamprophyres ...

Ore - Wikipedia

The ore grade, or concentration of an ore mineral or metal, as well as its form of occurrence, will directly affect the costs associated with mining the ore. The cost of extraction must thus be weighed against the metal value contained in the rock to determine what ore can be processed and what ore

Skarn - Wikipedia

Skarn is an old Swedish mining term originally used to describe a type of silicate gangue, or waste rock, associated with iron-ore bearing sulfide deposits apparently replacing Palaeoproterozoic age limestones in Sweden's Persberg mining district. Petrology. Skarns are composed of calcium-iron-magnesium-manganese-aluminum silicate minerals.

Iron Ore - Artifacts

Iron ore mining methods vary by the type of ore being mined. There are four main types of iron ore deposits worked currently, depending on the mineralogy and geology of the ore deposits. These are magnetite, titanomagnetite, massive hematite and pisolitic ironstone deposits.

Photos of gold ores, quartz, telluride gold ore and gold ...

The fourth class of gold ores comprises the gold-telluride group. The gold telluride ores occur with silver, or with silver, lead and antimony, or as native gold accompanied by other tellurides. These ores are often sent direct to the smelters for treatment. A fifth type is the disseminated ore type. They are often low in …

Iron Ore (Fe) Minerals Deposits in Nigeria - States, and Uses

Iron ore deposits are mostly found in rocks (sedimentary rocks), and iron ores constitute mainly of what is known as rocks minerals, from these mineral rocks the metallic iron deposits can be extracted. Iron ore contains four main types of iron oxides deposits solely dependent on the mineralogy and geology of the ore deposits, these includes ...

Iron Ore: Sedimentary Rock - Pictures, Definition & More

Iron ore is a chemical sedimentary rock. Iron ore was formed when the first plants capable of photosynthesis appeared. The water that covered the earth was rich in dissolved iron but contained ...

Mining of Iron Ores – IspatGuru

Mar 14, 2014· Mining of Iron Ores Iron ore is a type of mineral and rock from which metallic iron is extracted economically. This ore is normally rich in iron oxides and vary in color from dark grey, bright yellow and deep purple to rusty red.

Types of Iron Ore: Hematite vs. Magnetite | INN

Iron ore is most often found in the forms of hematite and magnetite. Learn what makes those types of iron ore different and make an informed investment. Did you know that there are different types ...

Iron Ore Distribution in India | Types of Iron Ore | PMF IAS

Jan 24, 2016· Types of Iron Ore – Haematite, Magnetite, Limonite & Siderite. Distribution of Iron Ore in India – Iron ore in Orissa, Jharkhand, Chhattisgarh, Karnataka & other states.

What is Ore? - Definition, Types, Uses & Examples - Video ...

What is Ore? - Definition, Types, Uses & Examples ... and those metals all began their life as an ore. An ore is a special type of rock that contains a large enough amount of a particular mineral ...

Iron Ores – IspatGuru

Mar 31, 2013· Iron Ores. satyendra; March 31, 2013; 2 Comments ; Hematite, Iron ore, Magneite, Iron Ores Iron ore is a type of minreral and rock from which metallic iron is extracted economically. This ore is normally rich in iron oxides and vary in color from dark grey, bright yellow and deep purple to rusty red.

Geology, Prospecting and Exploration for Iron Ore Deposits ...

Ores of this type were formed extensively in Precambrian iron formations by leaching of silica, which commonly constituted in excess of 50 % of the rock. Oxidation changed iron carbonate, silicate minerals, and magnetite to hematite or limonite. The potential iron ore known to exist in an area is called iron ore …

Rock to Iron - YouTube

Sep 18, 2017· I extract metallic iron from the ground using some chemistry and a new induction heater. At some point I'll get around to turning the pig iron into steel and making something from it. …

Hematite: A primary ore of iron and a pigment mineral

What is Hematite? Hematite is one of the most abundant minerals on Earth's surface and in the shallow crust. It is an iron oxide with a chemical composition of Fe 2 O 3.It is a common rock-forming mineral found in sedimentary, metamorphic, and igneous rocks at locations throughout the world.. Hematite is the most important ore of iron.Although it was once mined at thousands of locations around ...

Types of Rocks | Geology Page

There are three basic types of sedimentary rocks: Clastic sedimentary rocks such as breccia, conglomerate, sandstone, siltstone, and shale are formed from mechanical weathering debris. Chemical sedimentary rocks such as rock salt, iron ore, chert, flint, some dolomites, and some limestones, form when dissolved materials precipitate from solution.

What is Ore? - Definition, Types, Uses & Examples - Video ...

What is Ore? - Definition, Types, Uses & Examples ... and those metals all began their life as an ore. An ore is a special type of rock that contains a large enough amount of …

How Is Iron Extracted From the Earth? | Reference.com

Iron ores in the form of hematite (ferrous oxide) and magnetite are removed from the earth through mining. The use of heavy mining equipment is necessary to dig out large pits in an area with a large deposit of iron ore; however, because iron does not occur naturally, it is necessary to use a blast furnace to separate or refine iron from the other substances in the iron ore.

Iron Ore ~ Learning Geology

The iron ore deposits are found in sedimentary rocks. They are formed by the chemical reaction of iron and oxygen mixed in the marine and fresh water. The important iron oxides in these deposits are hematite and magnetite. These are ores from where iron is extracted.

Sedimentary Rocks | Pictures, Characteristics, Textures, Types

There are three basic types of sedimentary rocks. Clastic sedimentary rocks such as breccia, conglomerate, sandstone, siltstone, and shale are formed from mechanical weathering debris. Chemical sedimentary rocks, such as rock salt, iron ore, chert, flint, some dolomites, and some limestones, form when dissolved materials precipitate from solution.

Rock Types - Sandatlas

The major impurities are iron oxides and hydroxides (which give reddish color to most bauxites) and clay minerals. Bauxite is a weathering product of aluminum-bearing rocks.^ Bog iron is a type of iron ore composed of limonite with impurities like clay or plant debris. Bog iron is porous rock formed in bogs, wetlands, and shallow lakes.