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) |
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