Sinonim taconite

English Thesaurus

1. a variety of chert containing magnetite and hematite; mined as a low-grade iron ore (noun.substance)

hypernym	:	chert,
definition	:	variety of silica containing microcrystalline quartz (noun.substance)

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