The worlds biggest open pit iron mine can be found near Hibbing, Minnesota. At its maximum, the area covered by the Hull Rust open pit mine is five miles long, 2 miles wide and 535 feet deep. It looks like a man made Grand Canyon of over 2,000 acres . The first iron ore extractions were made here in 1895.
The machine, the only Bucyrus 4250 W ever built, was the largest single bucket digging machine ever developed. It cost approximately $159 million in todays terms and took nearly two years to build.
Within 1957 2001 the strip mining method produced $17 billion worth of diamonds. The biggest stone ever found in the Russian diamond fields was extracted from the Mir Pipe in 1980 and weighed 342.5 carats. Fig. 1. The Mir Diamond Pipe Quarry. In 2009, ALROSA intends to extract 150,000 tons of diamond ore at the site.
The Kiruna mine, located in Lapland, is the largest and most modern underground iron ore mine in the world, managed by the Swedish mining company Luossavaara Kiirunavaara AB. The Kiruna mine, with its underground jaw crusher, has an ore body 2.5 miles long, 260 ft to 390 ft thick and reaching a depth of up to 1.2 miles.
Primero lays foundations for worlds largest rail mounted stackers, reclaimer. Primero looks set to hit the June 30 deadline for the pre assembly of two stackers and one off reclaim machine for thyssenkrupp at the BHP owned South Flank iron ore project, in Western Australia. In an update posted today, Primero said it was nearing ...