how gold is extracted from the ground

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How gold is made

Gold is generally found in two types of deposits: lode (vein) or placer deposits; the mining technique used to extract the gold depends upon the type of deposit Once extracted, the gold is refined with one of four main processes: floatation, amalgamation, cyanidation, or carbon-in-pulp...

Gold Extracted From Ground

The deeper under ground you descend the hotter and denser the air becomes electricity is needed to produce ventilation and to regulate the temperature so that miners can safely extract the gold how is the gold extracted from the rock extracting gold from ,Gold extracted from ground...

What happens to gold after it is mined?

Most mining companies process and extract the gold from the ore on site, then the resulting metallic material extracted (which is mostly but not entirely gold - other metals present usually get extracted along with the gold) is melted and poured i....

Extracting gold from rock

Unlike alluvial gold, which is found as very small flakes on river banks, gold-bearing rocks have to be dug out of the ground We want pure gold, but gold-bearing rocks include lots of other materials such as quartz, calcite and the sulfides of other metals...

How Gold Mining Works | Gold News

May 19, 2009· Remember: Many gold mines are located in difficult-to-reach areas, where reliable power is a long-off dream And once the ore has been liberated from the ground, the gold will then need to be extracted from the ore The processing consists of taking the big pieces of ore and making them smaller, until it reaches the consistency of beach sand...

Gold mining

Sep 29, 2013· This video goes through a mine and shows how they mine their GOLD Thanks for Watching, Subscribe Below! Gold mining How is gold mined? , Gold extraction with BORAX for small-scale miners ....

How Raw Gold is Refined into Pure Bullion

Extraction Process Gold is derived from the ground through either placer or lode mining Placer mining, or panning, is the act of extracting gold from sand or gravel Think of gold miners squatting alongside rivers, swishing water and sediment around in a circle with a gold pan...

Gold Mining Methods

Today, gold is extracted in hardrock mines that directly mine the source rock, or "lode" of gold, where it was originally deposited by geochemical process Most ore accessed this way today contains only microscopic grains of gold, and it takes tons of rock to produce ounces of gold...

How was gold extracted

Jan 22, 2009· In the old days it was extracted from mines with pick ax Gold nuggets were dug from veins of crystal quartz that often included silver, mercury, and lead Today most of ,...

How gold is extracted

Gold and Copper are chemical elements No "minerals" can be extracted from them other than 'gold' and 'copper' They can be extracted from the minerals or 'ores' named in the other answers herein ....

How much gold is there in the world?

Apr 01, 2013· Up until 1492, the year Columbus sailed to America, GFMS estimates that 12,780 tonnes had been extracted , Image caption There is much gold still in the ground, ....

Sustainable technique recovers gold from e

The solution, he continued, is the greenest solvent next to water, so eliminates the vast number of environmental concerns that come with long standing methods of gold extraction In this ....