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</html><description>IJzer is het vierde meest voorkomende element in de aardkorst en het aandeel ervan bedraagt 5%. In feite is het het op een na grootste metaal met magnetische eigenschappen, na aluminium. Andere mineralen, zoals het oxide dat in de staalindustrie wordt gebruikt om legeringen te produceren, bevatten het ook. Ontdek meer van de functies en ... Lees verder</description></oembed>
