On the map above you can see that most of the elements are evenly distributed throughout the Earth's crust and that they are available all over the Earth. However, gold can only be found in certain areas of the planet, such as Australia and Canada. Gold can be found on almost every continent on Earth. It also exists in small amounts in seawater and in the human body.
Despite the fact that gold can be found almost everywhere, there is very little gold compared to other elements on Earth. Once gold has been processed and refined, it is ready for use in any product for which it was mined, be it electronics, dentistry, aerospace or any other application of gold. With gold deposits in the United States, Canada and Mexico, the North American continent is developing as a gold-producing continent. Cyanidation is the most popular and involves oxidizing and dissolving gold in alkaline cyanide and separating the resulting gold solution from solids.
Once gold has been found and extracted from its source, whether it is a dedicated gold mine or not, it needs to be processed so that it is ready for use in gold jewelry. Although the Kolar gold deposits have been closed for several years due to declining investment returns, this area of India is still believed to contain very rich gold deposits. Most of the gold produced today is used for the manufacture of jewelry, but gold is also an essential industrial metal that plays critical roles in computers, communications equipment, spaceships, jet engines and many other products. In these two regions, South Africa has the highest concentration of gold and the city of Johannesburg is built on the largest gold deposit in the world.
Therefore, 24-carat gold is pure gold; 12K would be an alloy that is half gold and half copper or other metals. The carat weight of gold is indicated by a number, followed by a “c” or “ct”, which indicates how much metal a piece of jewelry is gold.