PRECIOUS METAL SERIES - 7
The days when miners could dig or pan for nuggets of gold are largely gone. Today, gold is generally extracted from the Earth's crust as microscopic particles.
Estimates put the amount of gold in the Earth's crust at just 11 parts per billion!To recover a single ounce of gold, many tonnes of material must therefore be blasted and processed.
Gold mines sell unrefined gold in the...
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