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Uses of magnetite

Uses for Magnetite When used as the aggregate portion of a concrete mix, magnetite increases the density of the concrete to twice that of standard concrete. This so called heavy concrete has become a common building material in nuclear plants as well as (in brick form) for the mitigation of radiation in x-ray facilities Magnetite is the most common ore of iron; it is attracted to magnets and can itself be magnetised. It is used primarily in the production of iron and steel

Magnetite is an important material component of power plants as it is used to generate electricity. Magnetite, owing to its magnetic properties, is widely used in compasses and other navigation devices. Magnetite also serves as an excellent abrasive which is a cleaner and has way lower toxicity than abrasives that have a silica base Magnetite is sometimes used as an additive to fertilizer, providing iron as a micronutrient. Providing the pigment in some paints and toners is another of the uses of magnetite. It is especially common in the toner used in the photocopying process

Other Uses of Magnetite Small amounts of magnetite are also used as a toner in electrophotography, as a micronutrient in fertilizers, as a pigment in paints, and as an aggregate in high-density concrete. Magnetite and Earth's Magnetic Field Tiny crystals of magnetite are present in many rocks Uses Of Magnetite Magnetite as a mineral has a wide variety of uses right from serving as magnetic decor to keeping trains from moving off track. One of the most significant uses of magnetite lies in its iron ore status and its industrial importance in manufacturing steel Magnetite is strongly magnetic. It was used by the ancient Chinese to make the first magnetic compasses. The chemical formula is Fe3O4, commonly called ferrous-ferric oxide, and is valuable as an iron ore. Magnetite reacts with oxygen to produce hematite, another iron ore Uses of Magnetite Most of the iron ore mined today is a banded sedimentary rock known as taconite that contains a mixture of magnetite, hematite, and chert. Once considered a waste material, taconite became an important ore after higher grade deposits were depleted. Today's commercial taconites contain 25 to 30% iron by weight Magnetite is a Mineral. It is taken as a decoction or in the powdered form. It is a tranquilizing substance. Best used for Liver and Heart Problems

Magnetite is a mineral and one of the main iron ores, with the chemical formula Fe 3 O 4.It is one of the oxides of iron, and is ferrimagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself. It is the most magnetic of all the naturally occurring minerals on Earth. Naturally magnetized pieces of magnetite, called lodestone, will attract small pieces of. Magnetite will help relieve your emotional burdens and increase your physical stamina and vitality as well. It's also believed that Magnetite was used by soldiers in battle to make them invulnerable. Magnetite has a powerful attracting energy that attracts love, luck, and fortune. It also guards your relationship against infidelity Magnetite is a potent stone for manifestation, helping you to attract what you most desire, including both desirable situations and people. Also called Lodestone, this form of the stone is naturally magnetic

Magnetite is used in certain types of thermite (a substance that produces intense heat). Some magnetite is also used in high-density concrete, in photocopier toner, as a color for paint and in certain types of fertilizers Iron Minerals. (1). Magnetite: Fe3O4 Physical properties of Magnetite: Crystal System: cubic Cleavage: Absent Hardness: 6 in Moh's scale Sp.Gr: 5.18 Lustre: metallic to dull Colour: Iron Black Special Character: Strongly magnetic. A natural magnet is called Iodestone. Habit: Octahedral crystals, massive or granular USES 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 10 Facts about Magnetite. Find the details about a mineral on Facts about Magnetite. Fe3O4 is the chemical formula of magnetite. You can turn magnetite into a permanent magnet if it has been magnetized before. A magnet may attract magnetite due to its ferromagnetic characteristic. Lodestone is the naturally magnetized pieces of magnetite Benefits and healing effects of Magnetite Stone | Uses and Its Properties Hope so this video is informative to you, thanks like, Comment & Share #Magnetite #..

Magnetite is a natural aggregate manufactured from the iron oxide Magnetite. With its high specific gravity Magnetite is used as a coarse material to produce heavyweight concrete. When used as the aggregate portion of a concrete mix, magnetite increases the density of the concrete to twice that of standard concrete Magnetite is an iron-oxide mineral that occurs naturally on Earth. Because it is also an important component of many anthropogenic materials (e.g., coal fly ash) and synthetic products (e.g., black toner powders), magnetite can be released to the environment through human activities (1). In PNAS, Maher et al. (2) describe the abundant presence in the human brain of magnetite nanoparticles.

Hematite is the world's most important ore of iron. Although magnetite contains a higher percentage of iron and is easier to process, hematite is the leading ore because it is more abundant and present in deposits in many parts of the world. Hematite is mined in some of the largest mines in the world Magnetite was used by ancient civilizations to magnetize compass needles. This mineral occurs in nearly all igneous and metamorphic rocks, though usually only in small particles or in a solution with other minerals. Some beaches, often called black sand beaches, have heavy magnetite deposits

Magnetite Uses - Education - Micrex Development Cor

Learn how magnetite forms in closed-loop heating systems and how the Grundfos MagFilter can remove this contaminant and improve overall efficiency Magnetite is an iron oxide formed by Fe3+ and Fe 2+ cations that can be represented by the chemical formula (Fe 3+) tet (Fe 3+ Fe 2+) oct O 4, although it is more commonly represented by the chemical formula Fe 3 O 4. The presence of ferrous ions in their structure ensures unique redox properties Magnetite Nanoparticle. Magnetite nanoparticles have been incorporated into elastomer matrices aiming to develop new soft magnetic materials, which find applications in several fields of material science as actuactors, electromagnetic wave absorbers, magnetirheological elastomers, as well as in biomedical areas, including magnetic resonance imaging, drug delivery, hyperthermia, etc Magnetite - Industrial minerals customised for industry | Magnetite product uses. Our Magnetite product provides the right slurry density for applications in coal washing, mineral processing and scrap metal separation.In order to increase the reactivity, iron catalysts based on the natural iron oxide Magnetite are used. Read mor

Uses of MagnetsMINERALS EXAM - ProProfs Quiz

Magnetite: Uses and Applications in Recording Media, Pigments/Dyes and the Fischer-Tropsch Process, Water Purification and Soil Remediation A widely occurring ore of iron, magnetite finds a great variety of uses from pigments to soil remediation Both magnetite and water are used to make a slurry on which one product will float (the product with a lower density than the slurry) and in which the other product will sink (the product with a higher density than the slurry). Hence our customers often use the term sink-and-float separation. Depending on the densities of the products that need. Magnetite has a positive/negative polarity. This stone can be used to work on the individual biological magnetic field and meridians to balance their polarity, for example, by holding a Magnetite stone in each hand for ten minutes.This is a stone of grounding, but it can also be very efficient in meditation, visualization, and for developing telepathy Magnetite particles are used for the magnetic recording of hard disks, floppy disks, and other recording media. It is used as a catalyst in the processing of ammonia 47,273 posts. LocationCentral NM, USA, Sol 3. Share. Posted November 6, 2020. ORE for smelting! Magnetite is one of the highest grade ores you can use in a bloomery. It's especially good if it's already sized to 100 mesh or so. It's like the iron sand used in the Japanese Tatara, just a bit cleaner. Quote

Magnetite Applications and Uses African Pegmatit

  1. Total activity of their sorption surface is 800 - 1200 m2/g, magnetic field intensity produced by each particle is 300 - 400 kA/m, ζ - potential is - 19 mV. Each magnetite particle is a subdomain elementary magnetite of a sphere shape. The main biological action of nanotechnology preparations is direct to regulation of cell metabolism
  2. eral 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
  3. eral. In addition to being a common end-product of microbial metabolism.
  4. ing
  5. Magnetite is a raw material found abundantly in the MountainsandMountains Caves, as well as within the Jellyshroom Cave and Lost River. Magnetite can be found as alarge resource deposit. 1 Uses in Crafting 1.1 Fabricator 1.2 Habitat Builder 1.3 Modification Station 1.4 Vehicle Upgrade Console 1.5 Cyclops Fabricator 1.6 Scanner Room Fabricator 2 Data Bank Entry 3 Gallery 4 Trivia Magnetite was.

A Brief Overview of the Diverse Uses and Properties of

One uses a natural medium (water and the raw material) and the other uses a dense medium (with magnetite added).A composite natural medium washing plant can process 1,000 tonnes per hour of coal up to 200mm particle size In India, magnetite is used in all coal be.neficiation plants. Itis useddue to its easy availability better stability, easy preparation and tow viscosity properties. Additionally, magnetite is easily recoverable by using magnetic separators, and the recovered magnetite is again used in process cycle, thus reducing the operational cost of. Magnetite is magnetic and has powerful positive-negative polarity. It attracts and repels, energises and sedates. It acts as a grounding stone. Magnetite temporarily aligns the chakras, the subtle and etheric bodies. It aids telepathy, meditation and visualisation. Magnetite provides stability, balancing the intellect with the emotions Magnetite Consumption Study REV000. IntroductionMagnetite is used as a high density material from which together with water a dense medium is prepared. The high density material must meet at least several conditions, such as availability, low cost, sufficient density, abrasion resistance, and may not react with treated raw material and may not. This method involves the use of a heating facilitator. The facilitator, which in this case is a ferromagnetic material (magnetite), is admixed with the soil or sludge to be treated. When exposed to microwave energy, the facilitator preferentially absorbs the energy and transfers heat to the contaminated matrix

Video: What Are the Uses of Magnetite? (with picture

Date s. Modify. 2021-07-10. Create. 2005-08-08. Ferrosoferric oxide is an iron oxide. Iron (II,III) oxide (Fe3O4). It is a black ore of IRON that forms opaque crystals and exerts strong magnetism. Medical Subject Headings (MeSH Lodestone (magnetite) is used as an abrasive known as emery, used as a toner in electrophotography, in fertilizers, as a pigment in paints and as an aggregate in concrete. Lodestone is used for its power of attraction. It's been used for millennia for amulets and talismans. Metaphysical Uses. Lodestone (Magnetite) is used in many ways Short notes on the Chemical composition, Physical properties and uses of Magnetite. Chemical composition: Magnetite is composed of iron and oxyge the purest form it is ferrosoferric oxide (Fe 3 0 4; Fe = 72.4% and 27.6%). Sometimes iron is replaced by minor amounts of Ti and Mg presence of a magnet. But on the macroscale, magnetite is permanently magnetic. Nanotechnology takes advantage of special properties at the nanoscale—such as paramagnetism—to create new materials and devices. Ferrofluid is used in rotary seals in computer hard drives and other rotating shaf

Magnetite & Lodestone Mineral Photos, Uses, Propertie

Introduction Magnetite, also known as magnetite black sand, is a form of iron oxide. It is a very stable and dense material, and is widely found in nature across the world in a variety of natural settings as a commonplace mineral; it most commonly occurs in nature in a granular form as a sand or grit Chapter III Description of Magnetite Sand and its effective uses. Chapter IV Description of Palladium, Platinum, Silver, and the like, and their effective uses. Chapter V Data on prospective Magnetite Sand deposits in Northwestern and Northeastern Luzon, specifically in the provinces of Pangasinan, Ilocos Sur, Ilocos Norte and Cagayan The results demonstrate that the big brown bat Eptesicus fuscus uses single domain magnetite to detect the Earths magnetic field and the response indicates a polarity based receptor. Polarity detection is a prerequisite for the use of magnetite as a compass and suggests that big brown bats use magnetite to detect the magnetic field as a compass

Magnetite and chromite are opaque and dark gray to iron-black; magnetite is strongly magnetic. Magnetite and chromite are the major constituents of the rocks called magnetitite and chromitite, respectively. In addition, each is a common accessory mineral in one or more igneous rocks Magnetite, also called lodestone, or magnetic iron ore, iron oxide mineral (FeFe 2 O 4, or Fe 3 O 4) that is the chief member of one of the series of the spinel (q.v.) group. 6. Magnetite is a black, opaque, magnetic mineral that leaves a black streak when rubbed across a hard rough surface. 7 MAGNETITE-MSDS Section 1: Identification of the substance /mixture of the company undertaking 1.1 Product Identifier Product name: Magnetite Product type: Iron ore concentrated Chemical composition: Iron oxide, black powder (dust), odorless Chemical formula: FE3 O4 Weight of the formulation: 231,53 Mol: 1309-38-2 The mineral magnetite actually has higher iron content than the mineral hematite. However, while hematite ore generally contains large concentrations of hematite, magnetite ore generally holds low.

Magnetite Uses - Uses Of Magnetite - ILoveIndi

  1. In the middle-east, plants use a mix of haematite fines and magnetite (30-35%) for pellet making in order to exploit this advantage, whilst also obtaining higher quality pellets. Magnetite in India. The huge amount of magnetite present in India has already been stated in the introduction
  2. Magnetite has dozens of uses in helping to make the world a safer, healthier place, from purifying drinking water to enabling innovative cancer treatments using ferrofluids. Now, research shows iron oxide can play a powerful role in chemical bonding and chemical looping — two novel techniques that promise to revolutionize the way power plants.
  3. eral (FeFe 2 O 4, or Fe 3 O 4) 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, and high-temperature sulfide veins
  4. Magnetite heavy media processes are accurate, efficient and easy to control separators, capable of producing high quality clean coal. Magnetite recovery circuit operation and magnetite consumption are the main reasons for high capital and operating costs. Over the last two decades, several countries have been actively involved in establishing.
  5. ish the negative impact of elevated temperatures on mechanical properties of concretes. © 2015 The Authors. Published by Elsevier Ltd. Selection and peer-review under responsibility of organizing committee of the 7th Scientific-Technical Conference Material Problems in Civil.
PPT - Uses of magnets in everyday lifeINGENIO ATOMICO

What is magnetite commonly used for

Hematite Uses Area. It is the main iron ore in the world. It is one of the most important pigment minerals. It is a very dense and inexpensive material that is effective in stopping. X-rays and is therefore used for radiation protection around medical and scientific equipment. It is also useful as a ballast for ships Here we use the classic Kalmijn-Blakemore pulse re-magnetization experiment, whereby the polarity of cellular magnetite is reversed. The results demonstrate that the big brown bat Eptesicus fuscus uses single domain magnetite to detect the Earths magnetic field and the response indicates a polarity based receptor Unisex Magnetic Magnetite Lodestone Necklace, Black Magnetite 4 mm Rice Necklace, Magnetic Jewelry, Magnetite Jewelry, Magnetic Clasp. MagnetiteJewelry. 5 out of 5 stars. (305) $37.00 FREE shipping. Only 3 available and it's in 2 people's carts. Add to Favorites Iron sulfate used as fungicide, the oxalate of iron in photographic development, limonite, goethite, hematite as pigments and abrasives, magnetite in the production of industrial electrodes and also for washing coal; Iron chloride and nitrate used as mordents and industrial reagents in the production of several types of ink

Magnetite is used in many ways. Magnetite can be used as magnets, which can be used for more than just keeping paper on the fridge. It can be used to generate electricity, keep trains on the. Magnetite is in the hexoctahedral crystal class; in the 3-D crystal structure, the purple atoms are iron, and the red atoms are oxygen. Magnetite's greatest use is as an important iron ore for steel manufacture. Other applications are as a catalyst in the Haber process for making ammonia, as a pigment for paints and ceramics, and as magnetic. Magnetite 101 Reference Links & More information on Magnetite and its uses Magnetite. An ore of iron which is used in making steel, nails, kitchen appliances, furniture, tools, bridges, buildings, automobiles, construction equipment, manufacturing machinery, highway construction, shipbuilding, trains, railroads etc. Picture what life would be like without steel Magnetite Uses - Buzzle. 24 Jan 2012 Magnetite is a significant ore of iron and as such, is distinguished from other Before we jump towards discussing magnetite uses, let's take a closer Well, thermite is a powder-like substance made from metal powders and »More detaile Magnetite Uses - Buzzle. 24 Jan 2012 Magnetite has a wide variety of uses, both domestic and industrial. Magnetite is a significant ore of iron and as such, is distinguished from other Well, thermite is a powder-like substance made from metal powders and »More detaile

Magnetite Physical - Optical Properties, Occurrence, Use

Use exactly as directed on the label, or as prescribed by your doctor. Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon). You may need to shake the oral suspension before each use. You must chew the chewable tablet before you swallow it Magnetite ore, long the leading source of domestic iron supply in North America, Europe and China, is now increasingly relevant across the globe. The perception that magnetite ore is an inferior substitute to hematite ore is now firmly changing. As easily accessibly, economic hematite deposits become rarer, magnetite ore will continue to emerge as an [ MAGNETITE HISTORICAL INFORMATION AND USES. The name magnetite is thought to be derived from the ancient locality Magnesia near Macedonia. According to Pliny, the name was derived from that of a shepherd named Magnes who first discovered magnetite on mount Ida while pasturing his flock, when pieces of magnetite clung to the metal nails in his shoes

The density achieved will depend on the type of aggregate used. Typically using barites the density will be in the region of 3,500kg/m 3, which is 45% greater than that of normal concrete, while with magnetite the density will be 3,900kg/m 3, or 60% greater than normal concrete Fluorite, also known as fluorspar, is the mineral form of calcium and fluorine (calcium fluoride or CaF 2).It is an industrial mineral used in the manufacture of chemicals, ceramic, and metallurgical processes. Fluorites with exceptional color and diaphaneity are used to decorate ornaments magnetite used in this study was 27 times less than t he surface area of the synthetic magnetite. In physical adsorption, f aster kinetics and hi gher recovery shou ld favor the Au up take by

We have studied the oxidation of magnetite to Fe 2 O 3 in an electrolytic cell in which the anode is magnetite and the cathode is platinum. We report cyclic voltammagram data consistent with the hypothesis that magnetite, without oxygen gas production but with hydrogen gas production at the cathode, is occurring. The reaction occurs at a potential at the anode of about 0.3 V vs SCE in 1 M NaOH. magnetite ore and the productive deposits are briefly described below. Vanadium can be recovered from titaniferous magnetite ore or a magnetite concentrate of the ore by either of two general processes. In one process the ore or concentrate is mixed with a sodium salt and roasted, which yields a water-soluble sodiu

Magnetite Herb Uses, Benefits, Cures, Side Effects, Nutrient

TY - JOUR. T1 - Use of magnetite as anode for electrolysis of water. AU - Halley, J. W. AU - Schofield, A. AU - Berntson, B. N1 - Funding Information: This work was supported by a grant from the Center for Urban and Regional Affairs at the University of Minnesota and by the University of Minnesota Supercomputing Institute Magnetite is the most strongly magnetic of all minerals, and it is therefore natural that the earliest application of magnetism to ore dressing was for its concentration from gangue. Magnetite ores occur in large bodies in almost all countries, and on account of the high iron tenor of the pure mineral, and the ease with which it is concentrated. Magnetite is one of the essential stones for crystal healers, because of its many uses in aligning the currents of the auric field and the multiple levels of the energetic body. It is excellent for balancing polarities; male and female, physical and spiritual, and the left and right hemispheres of the brain

Magnetite - Wikipedi

Magnetite. Karara comprises a large-scale, long-life magnetite orebody amenable to bulk mining and processing. Magnetite ore has lower iron content (34-36% Fe) than hematite ore (58-64% Fe). It must be upgraded by a complex ore treatment process (beneficiation) to produce a high-grade (+65% Fe) concentrate for steelmaking Formula: Fe 2+ Fe 3+ 2 O 4 Isometric 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 Magnetite ore is relatively inexpensive when compared to other high-density materials used in dense media separation plants , such as ferrosilicon. Diagnostic Features, Occurrence and Other Uses Magnetite ore is a ferromagnetic material, with the chemical formula Fe3O4, and is one of several types of iron oxide

Magnetite: Meanings, Properties and Powers - The Complete

Magnetite uses magnets, similar to those used in a fridge door, to hold them closed. How do I clean my Magnetite windows? Cleaning is simple! Using a soft cloth or shamy the Magnetite panels can be easily cleaned with an acrylic cleaner or a mild detergent (3% in lukewarm water). You do not need to struggle to clean between the window panels Whether you want to use these products for any domestic, commercial or industrial purpose, all types of magnetite oxide solutions are available at your disposal. The magnetite oxide can also find immense uses in some important sectors such as the pharmaceutical industry, fertilizer industry, animal feeding industry, food industry and many more Magnetite nanopowder was synthesized by co-deposition of iron salts in the presence of ethylenediaminetetraacetic acid (EDTA) using sodium hydroxide as a precipitating agent. The iron chloride underwent complex formation reaction with (EDTA) followed by co-precipitation of the iron complex by boiling to produce the magnetite powder. The prepared powders were investigated by high magnification. Lodestone - 600 BC. The history of electricity and magnetism starts with this special mineral possessing amazing, and still mysterious, properties. Lodestone (also spelled loadstone) is a special type of the mineral magnetite. All varieties of magnetite display signs of magnetism, but of them, only lodestone possesses distinctly north-south.

Magnetite or Lodestone Meaning & Use: Magnetically Attract

magnetite iron ore price per ton - wholesale & suppliers - Simurgh iron and steel company. Ways of communication: Phone: 02147623014 , 09120169267. Fax: 02147623014. Telegram: @iron_metals. Email: info@simurghsteelco.com The name maglev is derived from magnetic levitation. This type of levitator may find use as a frictionless bearing and is a candidate to replace servo levitators for some applications. Diamagnetic levitation is a novel ground-based simulated microgravity method used for diamagnetic materials, such as biological samples [24, 25]. In the Magnetite is a major resource in Subnautica Below Zero, used to create and craft numerous useful items and equipment pieces to help you survive the icy environment.We'll show you here how to get and find Magnetites' location.. Read More: How to Get Diamonds in Subnautica Below Zero How to Get Magnetite in Subnautica Below Zero. You can find Magnetite in Subnautica Below Zero in most biomes.

Uses Of Magnetite - Want to Know i

Journal of Biomedical Materials Research Part B: Applied Biomaterials. Volume 77B, Issue 2. Enhanced cell‐seeding into 3D porous scaffolds by use of magnetite nanoparticle Procedure modified by Jonathan Breitzer and George Lisensky from Preparation and Properties of an Aqueous Ferrofluid by Patricia Berger, Nicholas B. Adelman, Katie J. Beckman, Dean J. Campbell, Arthur B. Ellis, and George C. Lisensky, J. Chem. Educ., 76, 943-948 (1999). A ferrofluid is a liquid made of nanoscale ferromagnetic particles dispersed evenly throughout There are three types of metal blackening: hot, mid, and room temperature blackening. EPi was the first company to offer all three processes. Hot black oxide (285 F°) is a conventional hot process which produces a true black oxide iron magnetite (Fe 3 O 4) finish. It is a premium-grade salt mixture which will blacken a wider range of steel.

uses of magnetite Archives - Geo Studie

Single magnetite. Most of the iron minerals in a single magnetite are magnetite. Because the single magnetite is simple in composition, strong in magnetism, and easy to grind and sort, the weak magnetic separation method is often used for selection About Magnetite; Magnetite weighs 5.17 gram per cubic centimeter or 5 170 kilogram per cubic meter, i.e. density of magnetite is equal to 5 170 kg/m³.In Imperial or US customary measurement system, the density is equal to 322.753 pound per cubic foot [lb/ft³], or 2.988 ounce per cubic inch [oz/inch³] .; Melting Point (MP), Magnetite changes its state from solid to liquid at 1597°C (2906.6. Examples of how to use magnetite in a sentence from the Cambridge Dictionary Lab

Magnetite: The mineral Magnetite information and picture

Q:Where can we get magnetite for use in making shielding concrete of 235 pounds per cubic foot?Does such heavyweight concrete have other properties similar to regular concrete? We are particularly interested in coefficient of expansion and also thermal conductivity In addition, magnetite is used as a catalyst. It is the catalyst used in the production of ammonia in industrial scale. What is Hematite. Hematite is an iron ore where iron can be found in the form of Fe 2 O 3. It is a major source of extracting iron. Hematite is a paramagnetic mineral. Therefore, it can get attracted to an external magnetic field

Buchite clinker (Wasatch Formation, Lower Eocene; coal firFRANKLINITE (Zinc Iron Manganese Oxide)