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GREEN VALLEY’S ASARCO DISCOVERY MINE TOUR SHOWS THE BEST AND WORST OF COPPER MINES AND THE ART OF HARDROCK MINING » Removing the Overburden

Lots of ore must be moved, crushed and separated for pure copper ore to be made.

crusher9300
OreBurdenxx9276

Published March 27, 2012 at 1745 × 1078 in GREEN VALLEY’S ASARCO DISCOVERY MINE TOUR SHOWS THE BEST AND WORST OF COPPER MINES AND THE ART OF HARDROCK MINING

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