A gold mine can operate for five to 30 years, and some are still in operation after many decades. The United States and South Africa each have two of the 10 largest gold mines in the world in terms of size of gold reserves, while the others are located in Indonesia, Russia, Papua New Guinea, Chile, Australia and the Dominican Republic. I saw it a few days ago, but now I don't know how to see it. While there is no way to know exactly how much gold is left to be extracted, experts agree that there are few intact gold deposits hidden in layers of rock.
However, gold becomes difficult to trace once it is used in jewelry, so our numbers on the amount of gold in jewelry may be incorrect. We also know that gold can be found and extracted from the ocean, which is thought to contain about 10,000 tons of gold. Gold is now recognized as one of the most valuable precious metals, although the era of unlimited gold mining has passed into the past. Extracting gold from other elements is also incredibly expensive, but more than that, the process results in gold that is too radioactive to be used safely by humans.
Also, keep an eye on the Garfield Refining blog for more fun and useful articles on the history of precious metals, such as The 3 Most Popular Ghost Towns of the Gold Rush. Does Fort know they still have gold? , and how did gold get its name?.