magnetite

English Thesaurus

1. an oxide of iron that is strongly attracted by magnets (noun.substance)

hypernym	:	iron ore,
definition	:	an ore from which iron can be extracted (noun.substance)

substance meronym	:	emery,
definition	:	a hard grey-black mineral consisting of corundum and either hematite or magnetite; used as an abrasive (especially as a coating on paper) (noun.substance)

substance meronym	:	loadstone, lodestone,
definition	:	a permanent magnet consisting of magnetite that possess polarity and has the power to attract as well as to be attracted magnetically (noun.substance)