The entire process of gold mining can be broken down roughly into four steps: prospecting, mining, extracting and refining. Only in a few areas is the gold concentrated enough to be mined profitably. Scientists, known as prospectors or explorationists, search for these deposits. This is known as prospecting.

How is gold produced?

Gold is obtained by two principal mining methods; placer and vein mining, and also as a by product of the mining of other metals. Placer mining is used when the metal is found in unconsolidated deposits of sand and gravel from which gold can be easily separated due to its high density.

How is gold mined in gold mining process?

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What do you need to know about processing gold?

This is done in order to determine the appropriate processing technique. Once ore is extracted, processing it into pure gold must be done. Ore is first crushed and then undergoes various processes depending on the nature of associated minerals. Processing low-grade ore is relatively simple while higher grades require more extensive processing.

What are the four main processes used to extract gold?

Once extracted, the gold is refined with one of four main processes: floatation, amalgamation, cyanidation, or carbon-in-pulp. Each process relies on the initial grinding of the gold ore, and more than one process may be used on the same batch of gold ore.

What is the life of a gold mine?

Gold Mining Operation: 10 – 30 years. The gold mining operation stage represents the productive life of a mine, during which ore is extracted and processed into gold. Processing involves transforming rock and ore into a metallic alloy of substantial purity – known as doré – typically containing between 60-90% gold.