Commercial Production of Taconite
On September 13, 1956, the first U.S. processing plant for the production of
taconite became fully functional in Silver Bay, Minnesota. Taconite, an ore that
contains 25-30% iron, was considered useless before World War II. However, as
U.S. ore reserves were depleted, ways of obtaining the iron found in taconite
became important. In processing the ore, rock is crushed at then separated to
obtain pellets that consist of 65% iron that can be used for other processes,
including making steel.
Items in Our Collection:
with taconite by Edward W Davis
in the Wind River Mountains, Sublette County, Wyoming by Ronald G Worl;
Geological Survey of Wyoming.
geology of the metamorphosed Biwabik iron-formation, eastern Mesabi district,
Minnesota by James Ronald Novotny Gundersen; George M Schwartz