magnetite

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magnetite

an iron oxide, Fe3 O4, found in cells of some organisms, which may play a part in geomagnetic orientation because of its magnetic properties. See MAGNETOSOMES, MAGNETO TAXIS.
References in periodicals archive ?
In the Province of Newfoundland and Labrador and in the Province of Quebec, the corp manages the forth coming Millennium Iron Range, which holds one of the world's giant undeveloped magnetic iron ore deposits.