Magnetite

Magnetite minerals are reddish-black to brownish-black, opaque, with a metallic to submetallic luster. Most minerals of the magnetite series show octahedral crystal growth habit, with square or triangular sections, but they may also exist as anhedral granular forms.

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Magnetite | NOVA Mineralogy

Magnetite in Hand Sample. Magnetite with fayalite. Euhedral magnetite crystals in a muscovite magnetite schist. Further Reading. Magnetite at webmineral.com. Magnetite at mindat.org. A resource for Mineralogy students. Actinolite; Albite; ... Minerals by Class. Meta. Log in; Entries RSS;

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Magnetite | Define Magnetite at Dictionary.com

A brown to black mineral that is strongly magnetic. It crystallizes in the cubic system and commonly occurs as small octahedrons. Magnetite occurs in many different types of rock and is an important source of iron. Chemical formula: Fe 3 O 4.

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Magnetite Mineral Specimen For Sale - dakotamatrix.com

Magnetite - Perfect sub-metallic black cubes of Magnetite to 6mm set on the top of quite interesting matrix with pods of Magnetite mixed with other oxides and possibly sulfides. . This and many more mineral specimens are available for sale at Dakota Matrix Minerals.

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What Are the Uses of Magnetite? | Reference.com

Magnetite increases the density of most mixtures in which it is present. This property allows magnetite to be used in the manufacture of heavy concrete, water filtration, coal mining, landscaping and production of certain iron-based chemicals.

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Magnetite - GEO143 Mineral Webpages - Google Sites

Mineral Group: Magnetite is in the Oxides group. In that group magnetite is separated into the spinel group. In that group magnetite is separated into the spinel group. The spinel group shows a crystalline structure that contains oxide anions arranged in a cubic structure and the cations, in this case the two iron ions, occupy some or all of ...

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MAGNETITE - LODESTONE - ravencrystals.com

Magnetite has also occurred within pieces of meteorite. Black to Brownish colored Magnetite is similar in appearance to Hematite with a metallic to semi-metallic luster. Magnetite’s hardness is rated at 5.5 to 6 on the Moh’s scale of mineral hardness. Magnetite is also known as Lodestone.

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Magnetite Concentration Methods

This mineral is a common accessory in magnetite ores; it is quite brittle, and, on being crushed, forms a fine powder which has a tendency to stick to the magnetite grains and so …

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Magnetite | Definition of Magnetite by Merriam-Webster

Magnetite definition is - a black isometric mineral of the spinel group that is an oxide of iron and an important iron ore. a black isometric mineral of the spinel …

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Magnetite: The mineral Magnetite information and pictures

Magnetite is an important ore of iron. Well formed crystals are popular among mineral collectors, and the magnetic Lodestone variety is frequently sold in hobby shops to amateur collectors. Magnetite is also of significant interest to the science community due to its strong magnetic properties.

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Magnetite Ore, Magnetite Iron Ore, Iron Ore Mining Process

Magnetite ore is a ferromagnetic material, with the chemical formula Fe3O4, and is one of several types of iron oxide. It is a ubiquitous mineral in many parts of the world, including Australia, the USA, Canada, South Africa, Mozambique and many other countries across most of the world's continents.

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Magnetite - Wikipedia

Magnetite is very easy to identify. It is one of just a few minerals that are attracted to a common magnet. It is a black, opaque, submetallic to metallic mineral with a Mohs hardness between 5 and 6.5. It is often found in the form of isometric crystals. It is the most strongly magnetic mineral ...

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Magnetite - YouTube

 · Magnetite is a mineral, one of the three common naturally occurring iron oxides (chemical formula Fe3O4) and a member of the spinel group. Magnetite is the most magnetic of all the naturally ...

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Magnetite: Mineral information, data and localities.

Jacobsite-Magnetite Series. Magnesioferrite-Magnetite Series. Magnetite is an important iron ore, along with hematite. Nanoinclusions of magnetite crystals cause the iridescence of Rainbow obsidian (Nadin, 2007). Extremely thin layers of nm octahedral crystals of magnetite give some basalt surfaces an iridescent sheen (Nadin, 2007).

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Magnetite (Ci Shi) | Chinese Herbs Healing

What is magnetite? Also known as Magnetic Hematite or Lodestone and Magnetitum in Latin, it refers to one of common oxide minerals and iron minerals mainly found in igneous rocks. Also as a member of the Spinel family of minerals, it mainly contains iron oxide (Fe3O4). This mineral belongs to the isometric crystal system.

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Sibelco - Magnetite | Products

Magnetite is a high purity magnetic iron oxide powder typically used in dense medium separation processing due to its magnetic properties and very fine sizing. Sibelco’s magnetite has supported coal processing in Australia for over 40 years. Magnetite is often used in toners, window insulation and as a …

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Magnetite - Crystal Meanings - Spirit Of ISIS Crystals

Magnetite is an iron oxide mineral and a member of the Spinel group. Magnetite occurs in a variety of rock types and is often the main constituent in black sand. Magnetite is strongly magnetic, and naturally occurring magnetic Magnetite is known as Lodestone.

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Titaniferous Magnetite: Titaniferous Magnetite mineral ...

Zircon 5 photos of Titaniferous Magnetite associated with Zircon on mindat.org. Ferro-ferri-katophorite 3 photos of Titaniferous Magnetite associated with Ferro-ferri-katophorite on mindat.org. Nepheline 2 photos of Titaniferous Magnetite associated with Nepheline on mindat.org. Chalcopyrite 2 ...

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Magnetite - LKAB Minerals

Magnetite, or Fe 3 O 4, is a black ferri-magnetic natural iron oxide.This natural aggregate is a member of the spinel group. LKAB Minerals' customers can be found all over the world and their use of Magnetite …

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The Magnetic Minerals - Amethyst Galleries' Mineral Gallery

The Magnetic Minerals are few, but the property is important because of this fact. Once a specimen is established as magnetic, identification becomes a rather routine exercise. The mineral magnetite is named after this characteristic.. Magnetism occurs (most often) when there is an imbalance in the structural arrangement of the iron ions.

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Magnetite Mineral Specimen For Sale - dakotamatrix.com

Magnetite - Group of pure black submetallic, modified octahedral Magnetite crystals from 6mm to nearly 2cm. As one would suspect they are highly magnetic. . This and many more mineral specimens are available for sale at Dakota Matrix Minerals.

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Magnetite - sandatlas.org

Magnetite (Fe 3 O 4) is a common iron oxide mineral.It is a member of the spinel group. These are minerals that share the same structure but differ in chemical composition. Other notable members of the group are chromite and spinel.Magnetite is among the two major sources of iron.

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Magnetite - an overview | ScienceDirect Topics

Magnetite is one of the end members of the ulvospinel-magnetite solid solution series (Fig. 3.3) and is the most common magnetic mineral on Earth. Magnetite is a cubic mineral …

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Magnetite - Witchipedia

Magnetite is a major iron ore and is best known for its magnetic properties. All magnetite can be attracted by a magnet and sometimes magnetite becomes a magnet itself. Naturally magnetized magnetite is also called lodestone.

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MAGNETITE Mineral Facts & Information Page

Magnetite is an important ore mineral of iron. A mixture of magnetite and corundum together is known as emery, a fine-grained mineral assemblage that has been used since ancient times as an abrasive. The astrological signs of magnetite are Aries, Capricorn, Aquarius and Virgo. Return to the Index of Magnetite Information Topics

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Magnetite - RRUFF

Mineral Group: Spinel group. Occurrence: A common accessory mineral in igneous and metamorphic rocks, in which magmatic segregation or contact metamorphism may produce economic deposits. Extensive deposits in sedimentary banded iron formations; a biogenic product; important detrital …

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Magnetite - WikiVisually

Magnetite differs from most other iron oxides in that it contains both divalent and trivalent iron. As a member of the spinel group, magnetite can form solid solutions with similarly structured minerals, including ulvospinel (Fe 2 TiO 4), hercynite (FeAl 2 O 4) and chromite (FeCr 2 O 4).

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Magnetite - definition of magnetite by The Free Dictionary

mag·net·ite (măg′nĭ-tīt′) n. The mineral form of black iron oxide, Fe3O4, that often occurs with magnesium, zinc, and manganese and is an important ore of iron. magnetite (ˈmæɡnɪˌtaɪt) n (Minerals) a black magnetic mineral, found in igneous and metamorphic rocks and as a separate deposit. It is a source of iron. Composition: iron oxide ...

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Magnetite: Crystals & Mineral Specimens | eBay

The principal accessory minerals, in addition to olivine and feldspar, are chromite and other spinels, garnet, magnetite, rutile, and scapolite. Kidz Rocks pyroxenite contains high concentration of ma...

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Magnetite | Mid-Georgia Gem and Mineral Society

Magnetite is ferrimagnetic and is the most strongly magnetic mineral found in nature. It is attracted to a magnet and can be magnetized to become a permanent magnet itself. A naturally magnetized piece is called lodestone and was used by ancient people as crude compasses.

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MAGNETITE (Iron Oxide) - Amethyst Galleries Mineral Gallery

Magnetite is the primary oxide of iron found in meteorites (and thus presumably in asteroids). Thermite is a mixture of powdered magnetite and powdered aluminum. When ignited, the aluminum fuel burns using the magnetite as an oxidizer, resulting in much heat, aluminum oxide (corundum), and …

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Magnetite | mineral | Britannica.com

Magnetite: Magnetite, iron oxide mineral (FeFe2O4, or Fe3O4) that is the chief member of one of the series of the spinel (q.v.) group. Minerals in this series form black to brownish, metallic, moderately hard octahedrons and masses in igneous and metamorphic rocks and in granite pegmatites, stony meteorites,

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Wisconsin Geological & Natural History Survey » Magnetite

Description: Magnetite is a common mineral found at many localities in Wisconsin. Only localities that where the mineral is present in great abundance or as unusual material are listed here. Magnetite occurs as an accessory in most igneous, metamorphic and sedimentary rocks, where it is found as small equant, euhedral to rounded grains.

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Magnetic Properties: Mineral Properties - The Mineral and ...

Some minerals may even act as magnets when heated. Magnetism. Only a variety of one mineral acts as a magnet, generating magnetic fields on its own. This mineral is Lodestone, the magnetic variety of Magnetite, which found in only a few deposits throughout the world. Although it is only weakly magnetic, its magnetism is definitely discernible.

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Magnetite – Virtual Museum of Molecules and Minerals

Magnetite is by far the most common mineral of its series. It may contain significant amounts of Mg and sometimes form solid solutions with magnesioferrite. Very minor substitutions of other elements such as Co, Ni, Ti, V, and Cr may occur. Magnetite minerals are reddish-black to brownish-black, opaque, with a metallic to submetallic luster.

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Magnetite - an overview | ScienceDirect Topics

Magnetite, ideal formula Fe 3 O 4, is an intriguing mineral, and not only because it is magnetic. The formula could be written as Fe 2+ Fe 3+ 2O 4 , which more precisely designates one of its peculiarities.

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Magnetite Mineral Specimens: - Mineralminers

This natural magnetite mineral specimen is composed of massive magnetite with very small amounts of bright blue chrysocolla in occasional blebs, stringers and veinlets, along with some minor accesory minerals. The magnetite concentration in this natural iron ore specimen is high enough that a magnet will stick to its surface.

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Magnetic mineralogy - Wikipedia

Magnetic mineralogy is the study of the magnetic properties of minerals. The contribution of a mineral to the total magnetism of a rock depends strongly on the type of magnetic order or disorder. The contribution of a mineral to the total magnetism of a rock depends strongly on the type of magnetic order or disorder.

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What is Magnetite? - Quora

Magnetite is a black, opaque, magnetic mineral that leaves a black streak when rubbed across a hard rough surface. It is one of the most abundant metal oxides, and its crystal structure contains both the ferrous (Fe+2) and ferric (Fe+3) forms of iron ions.

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Magnetite | Article about magnetite by The Free Dictionary

magnetite (măg`nətīt), lustrous black, magnetic mineral, Fe 3 O 4.It occurs in crystals of the cubic system, in masses, and as a loose sand. It is one of the important ores of iron (magnetic iron ore) and is a common constituent of igneous and metamorphic rocks.

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