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- Dictionarymagnetite/ˈmaɡnɪtʌɪt/
noun
- 1. a grey-black magnetic mineral which consists of an oxide of iron and is an important form of iron ore.
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Unit cell of magnetite. The gray spheres are oxygen, green are divalent iron, blue are trivalent iron. Also shown are an iron atom in an octahedral space (light blue) and another in a tetrahedral space (gray). Magnetite is a mineral and one of the main iron ores, with the chemical formula Fe2+Fe3+ 2O4.
Sep 8, 2023 · Magnetite is a black, magnetic mineral composed of iron and oxygen. It forms in various geological settings and has many applications in iron ore, magnetic media, water treatment, and catalysis.
6 days ago · 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,
- The Editors of Encyclopaedia Britannica
Magnetite is a black mineral that is an oxide of iron and an important iron ore. It is strongly attracted by a magnet and has various applications in industry and science.
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.
Magnetite is a dark gray to black iron oxide that is strongly attracted to magnetic fields. It is an important ore of iron and a popular mineral among collectors. Learn about its chemical formula, crystal forms, varieties, uses, localities and more.