Worldwide - no more than 200 thousand tons of gold According to various estimates, 150-200 thousand tons of gold have been mined throughout the history of mankind. Do you think this is a lot? Compare: all of humanity produces more steel in 1 hour. About 15% of the precious metal is recycled, another 15% is irretrievably lost as a result of use. Considering that some of the gold is sent for processing, your jewelry, for example, can be made from the heirlooms of famous people or pirate treasures. The volume of known gold deposits is estimated at 100-150 thousand tons. If you melt a cube out of all the bank's gold reserves, its sides will be about 12 meters long.