Taconite (/ ˈtækənaɪt /) is a variety of banded iron formation, an iron -bearing (over 15% iron) sedimentary rock, in which the iron minerals are interlayered with quartz, chert, or carbonate.

taconite, a low-grade siliceous iron ore composed of 20–30 percent magnetite that occurs in fine-grained banded iron formations. Taconite is mined primarily in the U.S., in the Mesabi Iron …

Taconite is mined from the Mesabi Iron Range, near Hibbing, MN. Then it is processed into pellets and moved by train--or on ore boats from Duluth--to ports and steel mills around the Great …

Using explosives, the taconite is blasted into small pieces. The taconite pieces are scooped up by electric shovels. Each shovel can hold up to 85 tons of rock. The shovels place the taconite …

Taconite is a variety of low-grade iron ore essential to modern steel production, particularly across North America. The widespread depletion of naturally occurring, high-purity iron deposits …

After low-grade iron ore (taconite) is blasted from the ground and broken apart, a gyratory crusher reduces the ore to pieces of about nine inches in diameter and shovels it into 240-ton capacity …

4 days ago · Taconite is a flint-like type of rock containing low-grade iron ore. Vast reserves of taconite, with iron concentrations of 30-50%, were discovered in 1870 near present-day …

May 22, 2025 · Taconite is a low-grade iron ore characterized by its fine-grained, hard, and siliceous nature. It primarily consists of magnetite and hematite particles embedded within a …

The rock being mined now is a lower grade ore called taconite, which has about 25–30% iron content. Taconite is a hard, dense rock containing a mixture of silicates and magnetite and is …

Jun 6, 2024 · The aggregate is already mined and sitting in waste piles on the Iron Range – taconite tailings. And after three years of testing, the taconite is holding its own as a high …