Gold Mining Buying gold mining shares is widely seen as a way of gaining exposure to movements in the gold price. If that is your aim you should also check out buying gold bullion which is increasingly popular, having become very much easier over recent years. Gold Mining – What does the term include? Gold Mining – Abundance of ore Gold is extremely rare.
According to geological experience essentially all gold is found only in low concentrations in rocks. Gold is rarer even than platinum, although because of platinum’s more even dispersion in the Earth’s crust it is actually harder to find commercial deposits of platinum.
Gold is more frequently deposited in the concentrations which make gold mining viable. Gold’s average concentration in the Earth’s crust is 0.
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The technology of extraction is expensive primarily because the process always requires gold mining companies to manipulate large physical quantities of ore for small results. The energy required to heave, grind and process ore is itself valuable, as are the chemicals used in the process, and this places a lower limit on the quality of ore which can be profitably worked in the gold mining process.
At different points concentration of minerals within the earth’s crust varies from their average, and it is those variations which produce workable ores for gold mining. Iron, for example, accounts for an average 5. A lower grade gold ore would contain something like 5 grams per tonne 5 parts per million. So gold ore needs to be concentrated by about 1, times above its average dispersion to become viable for gold mining. The process of gold concentration happens both above and below the surface of the Earth.
On the surface there is alluvial gold which has been concentrated by the effects of running water, usually rivers.
MINEX Europe 2018
Because of its extreme density metallic gold will readily fall out of suspension as water slows down.