Panning for gold is not as easy as many people think . This procedure involves a number of difficult actions. How to extract gold from the sand ? The answer to the question is very interesting and encompasses several options precious metal mining .
Several ways to help extract gold :.
Washing of sand in the water stream . In this way, enjoyed a very long time, but in some regions of the gold mined in this way. Gold is heavier than water , so the water washes away the lighter sand and gold grains can not wash away . Gravel was placed on an inclined chute . Under a stream of water light sand washed away , and the gold particles remained.
Washing of sand using sheepskin . Gold dust sprinkled on the skin and washed with water. Grains of gold deposited on the skin , they can be easily seen . This method reflects the myth of the Golden Fleece .
- Processing of auriferous sand on dredges . Large structures treated sand containing gold. In this year the construction processes about a million tons of sand . Take this sand from the bottom of rivers and lakes. To date, the gold-bearing sand is low , so most of the gold is mined ore. Ore mining method is very complex and expensive.
Gold has always lured people , so when its production is not only used modern methods.
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