copper
copper
Hematite is a common iron-containing mineral that is a major source of iron ore. It is commonly mined for its iron content, which is used in the production of steel.
These are all types of natural resources that are commonly mined and used in various industries: Coal is a combustible rock used for energy production. Iron is a metallic element used in construction and manufacturing. Slate is a fine-grained rock used for roofing and flooring. Lead is a heavy metal used in batteries, ammunition, and construction.
Coal was typically mined by digging tunnels underground to reach coal seams. Miners would use tools such as picks and shovels to extract the coal from the seams. In some cases, explosives were also used to break up the coal. Once extracted, the coal was usually transported to the surface using carts or conveyor belts.
Brown coal is sometimes mined underground when the coal seam is too shallow to be mined using open-pit methods. Underground mining can also be used when the overburden is too thick or when environmental considerations make open-pit mining less desirable.
copper
copper
copper
copper
copper & iron
Copper was a valuable element that used to be mined in Michigan's Upper Peninsula. The region was a major copper mining area in the 19th and early 20th centuries, leading to economic growth and development in the area.
Iron and copper.
copper
The element that used to be mined in the Upper Peninsula of Michigan is copper. Several towns in the Upper Peninsula, including Harbor, are named after this element due to the significant mining activities that took place in the region during the 19th and early 20th centuries. Copper mining played a crucial role in the economic development of the Upper Peninsula and attracted many settlers to the area.
Copper used to be mined in Michigan. The state was one of the leading copper-producing regions in the country during the mid-19th century.
copper
platinum