an iron-bearing chert containing from 25 to 35 percent hematite and magnetite: it is a low-grade iron ore that is pelletized for blast-furnace reduction
Origin of taconite; from Taconic, old name for rock formations first identified in the Taconic Range (in Vt. and Mass.) + -ite
A variety of chert containing magnetite and hematite, mined as an iron ore.
Origin of taconiteAfter the Taconic (Mountains).