Introduction: The Secret of Gold Beneath the Earth
If all the gold humanity has mined over the past 6,000 years were compressed into a single cube, it would measure about 22 meters on each side. Roughly the size of a tennis court.
So much talk about gold — and yet, in reality, there is surprisingly little of this precious metallic wealth.
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But the question that stirs investors, geologists, and economists alike is:
How much gold is still left?
Will humanity truly reach “peak gold” — the moment when less gold comes out of the ground than the world needs?
1. How Much Gold Have We Already Mined?
According to the World Gold Council, by 2026 humanity will have mined around 210,000 tonnes of gold. It sounds enormous, but if gathered in one place, the volume would be surprisingly small.
- To put it into perspective:
- All the gold in the world would fit into just a few Olympic swimming pools.
- A single cube of gold would be smaller than an average house.
Interestingly, almost all the gold ever mined still exists. It does not oxidize or decay. Tutankhamun’s mask, Roman aurei, Spanish gold coins from colonial ships — the gold in them is just as pure today as it was centuries ago.
- Distribution:
- 50% of gold is in jewelry,
- 20% is held by central banks,
- 20% exists as bars and coins owned by investors,
- 10% is used in industry (electronics, medicine, space technology).
2. The Largest Gold Mines
Gold does not come easily to the surface. Today’s largest mines are true underground cities.
- Grasberg, Indonesia: one of the world’s largest mines, operating at an altitude of 4,000 meters in the mountains.
- Muruntau, Uzbekistan: the largest open-pit mine, 3.5 km long and 2.5 km wide — visible even from space.
- Witwatersrand, South Africa: more than 40% of all gold ever mined in the world has come from here.
In South Africa, miners are forced to dig as deep as 4 kilometers underground. Temperatures there are so extreme that mines must be cooled with ice water. Engineers say working at these depths is more dangerous than walking in space.
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3. How Much Gold Is Left?
Geologists estimate that around 50,000 tonnes of economically recoverable gold remain in the ground. This means we have already mined about 80% of all accessible gold.
What remains is deeper, harder to reach, and more expensive.
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Experts from Barrick Gold warn:
“There are almost no large new deposits left. Mining is becoming more expensive, and discoveries are becoming rarer.”
4. Ecological Problems: Gold and Nature
Gold mining is not the romantic search for a golden vein we see in films. It is often a dirty and dangerous industry.
- In Peru, illegal mining in the Amazon has destroyed forest areas larger than Slovenia. To extract gold, miners use cyanide and mercury, which devastate rivers and lives.
- In Ghana, miners — often children — dig for gold in unsafe, unprotected tunnels.
- In South Africa, miners are exposed to deadly gases and extreme heat.
All of this means: even if gold is still in the ground, the question is whether it can be extracted without catastrophic consequences.
5. “Peak Gold” – Have We Already Reached It?
Many geologists believe we have already reached peak gold production. In 2019, global production hit a maximum and has since stagnated or even declined.
- If this is true, it means:
- Supply will shrink.
- Demand will grow (central banks are buying record amounts, and industry needs more for electronics, AI, and space technologies).
- The economic law is clear: the scarcer gold becomes, the higher its price.
Image: As major gold deposits decline, mining becomes deeper and more expensive, reinforcing peak gold concerns and limiting future global supply.
6. Central Banks and Their Reserves
Central banks are the largest “guardians” of gold. Together, they hold more than 35,000 tonnes.
- The largest holders:
- United States — 8,133 tonnes (Fort Knox and other locations),
- Germany — 3,352 tonnes,
- Italy, France, Russia, China — more than 2,000 tonnes each.
This gold is locked away. It does not circulate on the market. Central banks accumulate it because they know gold will be even more important in the coming decades.
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Story: Fort Knox — the largest vault in the world. The public has not seen the gold inside for more than half a century.
This fuels myths and conspiracy theories: is all the gold still there?
7. Hidden Gold in the Oceans and Space
If we looked into the oceans, we would find more than 20 billion tonnes of gold. The problem is dilution — only a few particles per trillion parts of water.
For centuries, scientists have tried to develop technology to extract gold from seawater cheaply. So far, unsuccessfully. Twentieth-century attempts were too expensive — retrieving one ounce of gold from the ocean would cost more energy and money than the gold itself is worth.
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Even more fascinating: gold in space.
Asteroid 16 Psyche, orbiting between Mars and Jupiter, contains so much iron, nickel, and gold that its value would amount to trillions of dollars. NASA launched a probe in 2019 to visit the asteroid.
Of course, we will not be capable of bringing gold from asteroids to Earth for decades. But the mere possibility raises questions: what would happen if millions of tonnes of gold were brought to Earth? Would it crash the market — or usher in a new era of humanity?
Image: Metal-rich asteroid 16 Psyche could impact future global gold supply through space mining.
8. Gold in Recycling: The Mines of the Future
Because large new deposits are scarce, recycling is becoming increasingly important.
E-waste — phones, computers, televisions — is now the second-largest source of gold in the world.
- Example: the Tokyo 2020 Olympic medals. All were made from gold, silver, and bronze recovered from electronic waste. The Japanese collected millions of old phones and extracted more than 30 kg of pure gold.
In the future, “urban mines” may become more important than traditional mining.
9. What Does Limited Supply Mean for Price?
When supply and demand meet, we get price.
- In 1971, an ounce of gold cost 35 USD.
- Today, it is around 5,200 USD.
If production continues to decline while demand rises (central banks, AI, space technology), gold will likely become even more expensive in the long term.
Gold is rare — and increasingly sought after.
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10. Conclusion: Will Gold Run Out?
- In a geological sense — no. There will always be some gold in the ground, in the oceans, and in space.
- In an economic sense — yes. Accessible and affordable gold may run out.
And that is precisely why gold remains valuable. Because it is not infinite. Because central banks accumulate it. Because industry needs it. And because people know: gold is the only true rarity in the world.
FAQ
According to estimates by the World Gold Council, by 2026 humanity will have mined approximately 210,000 tonnes of gold. If all that gold were formed into a single cube, it would measure about 22 meters on each side.
Geologists estimate that around 50,000 tonnes of economically recoverable gold remain. This means that we have already extracted about 80% of the accessible gold from the Earth.
“Peak gold” refers to the peak of global gold production. Many experts believe it was reached around 2019. Since then, production has stagnated or declined, which in the long term affects rising prices.
Yes, it is estimated that the oceans contain more than 20 billion tonnes of gold. The problem is that gold is present in seawater in extremely low concentrations, so it is currently not economically feasible to extract it.
Asteroid 16 Psyche, which orbits between Mars and Jupiter, contains enormous quantities of metals, including gold. NASA launched a mission to explore it. If its metals were ever mined, it could potentially transform the global gold market.
Due to increasingly expensive and difficult mining, recycling will be crucial. E-waste (phones, computers) is already the second-largest source of gold. The Tokyo 2020 Olympic medals were made from gold recovered from old mobile phones.
✨ May Fortuna be with you — and may gold remind you that true value always lies in what is scarce.
