Mesabi Range
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The Mesabi Iron Range is a mining district and mountain range in northeastern Minnesota following an elongate trend containing large deposits of iron ore. It is the largest of four major iron ranges i
Lake Superior Iron Ranges
Hull–Rust–Mahoning Open Pit Iron Mine, Mesabi Range, 2010
Open-pit iron mining with five-ton steam shovels, Hibbing, Minnesota c. 1906
Duluth Ore Docks c. 1900–1915
Minnesotaite
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Minnesotaite is an iron silicate mineral with formula: 3Si4O102. It crystallizes in the triclinic crystal system and occurs as fine needles and platelets with other silicates. It is isostructural with
Mesabi Range
…are beneficiated to pellets contain 60 to 67 percent iron. The natural ores are mainly mixtures of hematite and goethite. The most common silicate is Minnesotaite. Also of note are the presence of algal structures in the Biwabik formation. The Mesabi Range is 110 miles (180 km) long. Heights vary from 200–500…
Minnesotaite