What is magnetism?What is magnietite
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Magnetism is a class of physical phenomena that are mediated by magnetic fields. Magnetite is a rock mineral and one of the main iron ores, with the chemical formula Fe3O4.
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Magnetite is a rock mineral and one of the main iron ores, with the chemical formula Fe3O4. 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.[5][6] It is the most magnetic of all the naturally occurring minerals on Earth.
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