Iron Mines In Michigan
Aug 28, but by the s, most of the easily accessible ore with high concentrations of iron was gone, and mining companies had to dig much deeper and develop new techniques to extract and concentrate iron from lower-grade ore. today, mine operators in michigan’s upper peninsula are generally after taconite, a low-grade ore that was once considered.By using ore sorting equipment, ore concentrates can be created at very low cost in small or remote mining installations. the entire processing line can be planned in semi-mobile form and consists only of crushers, screens, belts and sorting machines. this allows immense cost savings for transport, since the waste rock is disposed of.