To get at some kind of estimate, let's figure that the world has been producing gold at 50 million ounces a year for 200 years. This factor likely means there is much less .999 fine platinum supply available today than has ever been mined and put to use throughout history. What we don’t know, however, is precisely how much gold is still out there. These can be split into two categories: reserves (gold that is economic to mine at the prevailing gold price); and resources (gold that will potentially be economic to mine, subject to further investigation or at a different price level). What is the meaning of the karat mark on gold jewelry? And since gold is virtually indestructible, this means that almost all of this metal is still around in one form or another. How much gold has been found in the world? “If a cubic centimeter of 24K gold equals 19.3 grams, then a cubic meter of gold would weight 19.3 tonnes. Think you know which mineral Fool’s Gold is? All of the gold discovered thus far would fit in a cube that is 28 meters wide on every side. There are quite a few rough estimates as to how much gold has been extracted from the earth to date. Peak gold takes this phenomena into account. In addition, actual... Of the 1,740,000 metric tons of silver discovered to date, 55% is found in just four countries on earth. We sit down with Kathleen Johnson, USGS Mineral Resources Program Coordinator, as she walks us through just how valuable minerals are to our lives. Tallapoosa River . A sample of native gold. Gold is almost impossible to destroy, but it can be reprocessed, reshaped, melted down and alloyed with other harder metals. 1998 Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States; 2000; CIR; 1178; The U.S. Geological Survey National Mineral Resource Assessment Team. Usually minerals, especially metals, are mined first in ore form, then refined later. Gold Pans and Placer Gold - image by Max Flanery, California Geological Survey. Figuring out the total amount of gold that has been produced by man is a little harder. Finding an exact figure as to how much gold has been mined, remains very difficult. Mercury contamination from historical gold mining in California; 2005; FS; 2005-3014; Alpers, Charles N.; Hunerlach, Michael P.; May, Jason T.; Hothem, Roger L. Gold recycling in the United States in 1998; 2001; CIR; 1196-A; USGS NUMBERED SERIES; Flow studies for recycling metal commodities in the United States; Amey, Earle B. The standard estimate, which has been formed under the assumption that gold-mining processes would have been less efficient in the past, is that 10,000 metric tons of gold had been unearthed by 1848. Thus, 24 karat gold is pure gold; 12 K would be an alloy that is half gold and half copper or other metals. Knowing how much gold we have is also critical to grasping the future dynamics of supply and demand and what the future price of gold might look like.. A.; Olson, J. C. Prospecting for gold in the United States; 1967; USGS Unnumbered Series; U.S. Geological Survey, Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data. The overall recycling rate was 29 percent when scrap consumption was compared with apparent domestic supply. Again, we reiterate most platinum that has ever gotten mined has got put to some use or application. This project also estimated the identified resources and past production of these five metals. The best estimates currently available suggest that around 197,576 tonnes of gold has been mined throughout history, of which around two-thirds has been mined since 1950. You will not see all the features of this website. Geology, Geophysics, and Geochemistry Science Center, Digital Gold Rush Depends on Traditional Gold, Geology, Minerals, Energy, and Geophysics Science Center, Eastern Mineral and Environmental Resources Science Center, 2017 Oct. Public Lecture — Global Trends in Mineral Commodity Supplies, NMIC - 2017 Mineral Commodity Summaries Release, https://commons.wikimedia.org/w/index.php?curid=44555449, PubTalk 3/2015 — The Environmental Legacy of California's Gold Rush, 1850 Woman and Men in California Gold Rush, http://www.neatorama.com/2013/11/05/Gold-Rush-Girls/, https://commons.wikimedia.org/w/index.php?curid=52272060. Again, most physical silver mined over time has been lost to industrial use and gone unrecycled. How are geochemists studying the distribution and. How many pounds of minerals are required by the average person in a year? Credit: By Unknown - http://www.neatorama.com/2013/11/05/Gold-Rush-Girls/, Public Domain, https://commons.wikimedia.org/w/index.php?curid=52272060. The gold in the Witwatersrand Basin area was deposited in Archean river deltas having been washed down from surrounding gold-rich greenstone belts to the north and. Most of that gold has come from just three countries: China, Australia, and South Africa. This report summarizes the primary characteristics of alkalic-type epithermal gold (Au) deposits and provides an updated descriptive model. Identified deposits contain an estimated 2.1 billion metric tons of additional copper, which brings the total amount of discovered copper to 2.8 billion metric tons. The United States ranked fourth in gold production in 2016. Dynamic studies of critical and strategic mineral supply and demand can identify emerging potential supply risks. A sample of fact sheets on selected important commodities that are published by the Mineral Resources Program. About 244,000 metric tons of gold has been discovered to date (187,000 metric tons historically produced plus current underground reserves of 57,000 metric tons). Current estimates [as of 2017] … suggest that around 187,200 tons of gold have already been mined, two-thirds of which were mined in the last 70 years or so – usmoneyreserve.com . Gold is a little different because it is very hard to find. The National Minerals Information Center, the primary agency for collecting and analyzing nonfuel minerals information, releases the 2017 Mineral Commodity Summaries, a collection of reports on over 85 commodities essential to the U.S. economy and national security. The WGC estimates that there are 54,000 tonnes of “below-ground gold reserves” waiting to be mined. In 1849, the discovery of gold in California sparked one of the most famous gold rushes in history. As far as the amount of gold that remains in the earth … there are about 57,000 tons left to be mined. 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