Surface mining finally shows its worth | Business News
Jun 27, 2013 ... ON TOP: Mark Shelton (left) and Peter Blackburn with their $6 million Wirtgen 4200 surface miner, which ... time – especially in Estonia for mining oil shale and in India for mining coal ... in Australian coal, bauxite, iron ore, nickel, salt, uranium and lizenithne mines. ... Closing price for the last 90 trading days.