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OpenStudy (anonymous):
What material is generally believed to have formed the first magnets to be discovered? magnesium , bronze , pure iron , or magnetite ?
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OpenStudy (michele_laino):
it is magnetite
OpenStudy (anonymous):
ooh okie thank you!:)
OpenStudy (michele_laino):
its chemical formula is Fe3O4
OpenStudy (michele_laino):
:)
OpenStudy (anonymous):
:)
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