The richness of the ore explains its low production costs: $0.60 per pound of copper in Papua, compared with $1.25 in Peru and Chile.
He was boasting about the richness of the blue-black ore at the Mount Whaleback mine, but he might as well have been bragging about the boom that has propelled economies across the Asia-Pacific region.
Interfacial interactions between substrata and bacterial cells are more complicated in the case of ores or post-flotation wastes containing residues of copper sulphides and different origin ores (in our experiments limestone and sandstone are origin ores).
Until iron-ore mining was suspended in 1975, Pepel, the nation's only iron-ore port, had an annual turnover of 2 3 million tons of ore.
Nichols took charge of ore procurement.
The expansion would yield 400,000 tonnes of ore.
The plate of ore was made from a thin section of crude ore by polishing.
Tailings are sediments resulting from settling of ore's wastes.
The lead concentrations of five ore samples from various stages of ore processing measured at USGS laboratories were 331, 9,150, 13,700, 112,000, and 175,000 ppm.
In the simplest one-man mining operation, the costs of ore transportation are minimal because a miner simply loads up a backpack full of ore.
Draw coal ores, red-stone ores, iron ores, and every single type of ore.
