the big dredges have big bucket type things that dig up dirt and separates the ore from the soil.
Minnesota's state mineral is iron ore.
Loaded into a ship in Duluth, MN on Lake Superior, then sailed to Lake Erie.
Duluth, Minnesota
the Mesabi Iron Range was very rich in high iron content iron ore. Most of the extremely high quality iron ore has already been mined, but there still is a lot of fair quality iron in the mines there. That and the proximity of the range to Lake Superior which allows for transportation of the iron ore over the great lakes to several locations along the lakes or to the Atlantic Ocean and then to various part of the world make the Iron Range area for shipping iron ore.
Iron ore
The state "gem" in the Lake Superior Agate. I am not sure there is a "Sate mineral" though iron ore has played a major role in Minnesota's history and economy due to the Iron Range in the Northern part of the state.
The Mesabi Iron Range is in the Northeastern part of the state of Minnesota. Cities like Viriginia, and Hibbing are near the Iron Range. The Iron range is near Lake Superior and iron ore mined there is often shipped from Lake Superior port cities like Duluth over great lake water ways to steel plants.
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iron ore
iron ore iron ore
Minnesota. On the Cuyuna, Vermillion, Gunflint, and Mesabi ranges. This I know because I'm from the area.
no they are not the same because iron is a metal that is obtained from its ore called iron ore