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нүүрсний үйлдвэрлэлийн үйл явц. Magnetite Элсний уурхайн үйл явц. Magnetite Элсний уурхайн үйл явц Magnetite Wikipedia Magnetite is a rock 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 ...
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