One of the most widespread oxide minerals with the general formula Fe3O4 (iron oxide) found in a number of geological environments including sand grains in beach or river deposits Magnetite is magnetic with some forms (lodestone) showing polarity
A black isometric mineral of the spinal group that is an oxide of iron and an important iron ore
Fe3O4 A black, magnetic iron oxide mineral usually inherited from igneous rocks Often found in soils as black magnetic sand grains
It is readily attracted by a magnet and sometimes possesses polarity, being then called loadstone
A naturally occurring mineral that is magnetic Frequently occurs in biological organisms that utilize magnetic information for survival Newts and Homing Pigeons, for example, are believed to use structures containing magnetite to navigate
or lodestone or magnetic iron ore Iron oxide mineral (Fe3O4), the chief member of one of the series of the spinel 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, and high-temperature sulfide veins. Magnetite, as the name implies, is strongly attracted to a magnet. It is a common constituent of iron ores. Magnetite with an intrinsic magnetic field (a natural magnet) is known as lodestone