Open-pit mining involves excavating and relocating large amounts – in some cases entire mountains – of surface earth and the underlying “waste rock” in order to expose the desired ore. Once removed, the ore is crushed into a powder-like consistency and showered in cyanide to dissociate the gold from the rock. This method poses far-reaching environmental dangers as approximately 79 tons of waste are produced to extract just one ounce of gold. Barrick claims that they have the ability to process a combined total of 24,000 tons of ore per day using industrial quantities of cyanide, leading to 1 million ounces of gold per year.
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