Tag Archives: gold rush

Your Weight in Gold

The traditional phrase “worth your weight in gold” has been used since Roman times, and is a well-known saying signifying that someone or something is very valuable, helpful, or to be treasured.

But taken literally, what ‘value’ would a person be worth if they were worth their own weight in gold?

For a given gold price, the answer not surprisingly depends on the person’s weight, so a more suitable and relevant question might be what value would an average person be worth if they were worth their weight in gold?

Since average weight will vary by gender, a practical calculation would be to run two calculations, one for the average weight of a woman, and the other for the average weight of a man.

Looking at average weight data over regions of the world by male and female yields an average weight for a man of 78.5 kgs (173 lbs), and an average weight for a woman of 69 kgs (152 lbs).

Across the world, human weight data shows the regional averages for both genders from heaviest to lightest run as follows: North America, Oceania, Europe, Latin America, Asia, Africa. Taking simple averages of these regions for men and women, the average global weight for a man is 78.5 kgs (173 lbs), while the average weight for a woman is 69 kgs (152 lbs).

Gold Kilobars

At a gold price of US $1350, a world average weight of 78.5 kgs (173 lbs) for a man would mean that the average adult male would weigh approximately 1993 troy ounces, and be valued at approximately US $ 3.4 million. Note that 1 kilo =  32.1507 troy ounces.

32.1507 troy ounces  * 78.5 kgs = 2524 ozs = US $3.40 million

At the same gold price, a world average weight of 69 kgs (152 lbs) for a woman would mean that the average adult female would weigh approximately 2218  troy ounces, and would be valued at approximately US $3 million.

32.1507 troy ounces  * 69 kgs = 2218 ozs = US $2.99 million

Overall, an average adult across the world weighs 2371 ozs, which at a gold price of US $1350 would be valued at US$3.2 million.

Most people will be familiar with the large gold bars that are stored in central bank gold vaults, such as the gold vaults of the Bank of England in London. These ‘Good Delivery’ gold bars are standard bars in the worldwide wholesale gold market, and although they are variable weight bars, each of these gold bars usually weighs in the region of 400 ozs. Assuming one of these gold bars weighs 400 ozs, then the average adult in our global weight calculation would weigh the equivalent of  5.92 good delivery bars. Let’s call it 6 Good Delivery gold bars, which would be a neat pyramid of 3 * 2 * 1 gold bars.

An average adult weighs the same as 6 large central bank gold bars

Similarly, when measured in terms of gold kilobars, the average adult from our calculation would weigh the equivalent of 74 gold kilobars.

Gold's High Density

Density refers to the amount of mass (weight) in a given volume. Gold has a very high density, 19.3 g/cm3, which is higher than most other metals. As an example, a cubic centimetre of gold will weigh 19.3 grams. Gold’s density is also 19 times higher than water, which is why gold panning works, since the gold will sink to the bottom of the pan and separate from other materials.

Gold's high density also explains why even a 1 ounce gold bar or 1 ounce gold coin will feel heavy when held in the hand, especially for people holding one of these gold bars or gold coin for the first time. It also explains why trying to lift up a 400 oz gold bar, especially with one hand, is a lot more challenging than it first looks.

Gold’s high density also means that a significant amount of gold can be stored in a small area. And because a small amount of gold is valuable, this also means that a very high value holding of gold can be stored in a small area.

This can be referred to as gold’s value dense property, i.e. a small quantity has a high value. This also means that gold can be hidden easily. And that a small amount of gold worth a significant amount can be carried easily, i.e. gold is portable.

If measured in gold kilobars, an average adult would weigh the same as 74 gold kilobars.

Gold's high density makes it difficult to counterfeit, since few other metals can be substituted for gold as their densities are lower. One exception is the metal tungsten, which has a density of about 19.3 g/cm3, similar to gold. While tungsten is sometimes associated with gold bar forgeries, nowadays there are various tests and measurement apparatuses which can determine that a counterfeit bar contains tungsten and not gold.

In comparison to gold, silver has a density of 10.5, which explains why silver is bulkier and takes up more room to store. As the silver price is about 80 times less than the gold price, it also means that a high value holding of silver will require substantially more room to store than a gold holding of the same value. This also explains why silver storage fees in a vault are higher than gold storage fees.

The Gold Standard

Apart from the phrase “your weight in gold”, there are many other well-known idioms associated with gold which also convey gold’s high value and the esteem with which societies and civilizations have held gold in throughout history.

For example, as well as describing an actual gold standard where gold-backed paper currencies in many parts of the world up to the 20th century, the phrase “gold standard” is used metaphorically describe a standard of excellence by which other things are measured.

“Like gold dust” is a popular idiom signifying that something is very rare and of high value, and which is difficult to find because of its rarity value. This expression is derived directly from the fact that gold too is difficult to find, is rare and is of high value.

If a business or enterprise is referred to as “a gold mine”, it is because that business generates substantial profits or cash flow for the owners. Similarly, if someone is “sitting on a gold mine”, it means that they have land or property which is worth a considerable amount.

The terms ‘golden handshake’ and ‘golden parachute’ are now used widely in business to refer to generous departure terms when employees or executives leave a position of employment.

A “gold rush” is often synonymous with the frenzied pursuit of an investment opportunity or new investment sector, such as a gold rush on Wall Street, or the dot-com gold rush. Finally, to “strike gold’ is to find success or wealth through a deliberate endeavor or sometimes through luck.

Whatever the expression, the one thing that these well-known phrases have in common is that they allude to gold's high value and rarity, and are immediately accepted and understood when used in the English language.

The 5 Largest Gold Nuggets that Still Exist

Throughout gold rush and gold mining history, the discovery of a large gold nugget is a phenomenon which always causes excitement throughout a mining community as well as capturing the wider public's imagination. It has probably something to do with so much gold being found at the same time, often with relative ease.

Gold nuggets can be found in alluvial deposits (sediments formed by water movement) or in other placer deposits (formed by other movement), but gold nuggets can also be found in or close to primary gold deposits, for example gold lodes or veins which have been exposed by the weather. "Gold nuggets" can also technically be extracted from hard rock gold deposits as long as the surrounding rock can be removed.

There are a number of gold nuggets which claim to be the world's largest. Obviously, not all of these claims can be true. There are also a number of "largest gold nuggets" lists which confusingly mix historical nuggets which no longer exist alongside nuggets which still exist.

We think a list of gold nuggets which still exist is more accurate, since many historical nuggets are now just legends and have long since been melted down into gold bars or gold coins. Therefore, the following list, based on research to the best of our abilities, profiles the largest 'named' gold nuggets which are still in one piece, all of which are famous, all of which are on display, and all of which can be visited by the public.

1. Pepita Canaã,  Brazil

The world’s largest surviving gold nugget is the Pepita Canaã (Canaan Nugget) which was found by miner Júlio de Deus Filho in the Serra Pelada ('Naked Mountain') gold mining region of Brazilian state of Pará in 1983.

The Pepita Canaã gold nugget has a gross weight of 60.82 kgs and contains 52.33 kgs of gold, or 1682 troy ounces of gold. The "Canaan" gold nugget was purchased by the Banco Central do Brazil in 1984, and is now on display in the "Gold Room" of the central bank’s money museum (Museu de Valores do Banco Central in Brazil) in Brazil’s federal capital Brasilia.

Notably, the source nugget from which the Pepita Canaã nugget came was actually larger, but it split into several pieces while being removed from the ground.

"Pepita Canaã" - The largest surviving gold nugget, on display at the Brazilian central bank headquarters, Brasilia

In the early 1980s, Serra Pelada became known as one of the world's most notorious gold mining areas when over 100,000 freelance miners flocked there to engage in open air gold mining excavations in vast, dangerous, and crowded conditions. The Serra Pelada has essentially been closed since the late 1980s and gold mining is no longer possible due to flooding and government prohibitions. However, Brazil is still a significant gold producer, with gold production output in 2016 totalling 80 tonnes, according to the US Geological Survey (USGS).

Serra Pelada gold rush, Para, Brazil, 1980s

2. The Great Triangle, Russia

The world’s second largest surviving gold nugget is the “Great Triangle”. This gold nugget was found in the Miass area of the Russian Urals mountains in 1842 by Nikofor Syutkin. It has a gross weight of 36.2 kgs and a gold assay of 91%, meaning that it has a fine gold content of 32.94 kgs, or 1059 troy ounces of gold. The "Great Triangle" has dimensions of 31 cms * 27.5 cms * 8 cms, and as the name suggests,  it is triangular in shape. When found, it was dug up from a depth of about 3.5 metres.

The Great Triangle gold nugget on display at the Kremlin in Moscow, Russia

The Great Triangle gold nugget is owned by the Russian State, and through the Gokhran Fund (State Fund for Precious Stones and Precious Metals), it is currently on display in the 'Diamond Fund' collection in the Kremlin in Moscow. The Diamond Fund is an extensive  permanent exhibition of the Russian state's crown jewels, precious stones and gold and platinum nuggets.

While the Urals was one of Russia's first gold mining areas, today, there are extensive gold mining operations in many areas of the Russian Federation, particularly in the East of the country. Russia is currently the world's 3rd largest gold producer, with mining production output of 250 tonnes of gold in 2016.

3. Hand of Faith, Australia

The "Hand of Faith" is a 27.66 kgs gold nugget found by in the area of Kingower, Victoria, Australia in 1980 by a local, Kevin Hillier. This gold nugget has the distinction of being the largest gold nugget ever found using a metal detector. It contains 875 troy ounces of gold, and has dimensions of 47 cms * 20 cms * 9 cms.

The "Hand of Faith" nugget was purchased by the Golden Nugget Casino in Las Vegas, Nevada, USA, and is currently on display in the casino lobby on East Fremont Street in the old downtown center of Las Vegas.

Hand of Faith gold nugget on display in the Golden Nugget casino, Las Vegas

The Golden Nugget Casino claims on its website that the "Hand of Faith" nugget is the world's largest surviving gold nugget, but this is clearly not the case given the existence of other larger gold nuggets such as Brazil's Pepita Canaã and Russia's Great Triangle nuggets.

4. Normandy Nugget, Australia

The "Normandy Nugget” is the name given to a 25.5 kgs (820 ozs) gold nugget found is 1995 in the important gold mining centre of Kalgoorie, Western Australia. Assay analysis shows the Normandy Nugget to have a gold purity of between 80%  and 90% .

The Normandy Nugget was purchased from the finder in 2000 by Normandy Mining, which is now part of Newmont Gold Corporation, and the nugget is currently on display in the museum of the Perth Mint based on a long-term agreement with Newmont.

The "Normandy Nugget", on display at the Perth Mint, Western Australia

Western Australia is the country's most important gold mining region and has been since the late 1880s when gold was discovered in a number of areas including  Kalgoorie. Today, Kalgoorie is home to the Super-pit, one of Australia's largest open-cast gold mines.

According to the US Geological Survey, Australia is the world's second largest gold producer, with gold mine output of 270 tonnes in 2016.

5. Ironstone’s “Crown Jewel”, California

Ironstone’s “Crown Jewel” gold nugget is a single piece of crystalline leaf gold found in California in December 1992 by Sonora Mining Company. The gold was found embedded in quartz rock, however through a cleaning process involving hydrofluoric acid, most of the quartz was removed to reveal a single mass of gold weighing 44 troy pounds (16.4 kgs).

Ironstone Crown Jewel, Crystalline Leaf Gold

The Ironstone “nugget” is now on display at a heritage museum in Ironstone Vineyards in California, and is sometimes referred to as the “Kautz Crystalline Gold Leaf Specimen” in reference to John Kautz, owner of Ironstone Vineyards.

Gold and California have been interlinked since the famous northern California gold rush of the late 1840s - early 1850s. The US is still a major gold producer, and in 2016 produced an estimated 209 tonnes of gold according to US Geological Surveys (USGS), putting it in fourth place behind, Chine, Australia and Russia. Nowadays however, Nevada and Alaska are the US' two primary gold producing states, although there are still gold mining operations in California such as New Gold's Mesquite gold mine.


There are actually a number of gold nuggets from Brazil's Serra Pelada region on display in the Brazilian central bank's museum. A list of these gold nuggets can be seen here. Three of these additional gold nuggets are listed with gold content weights of 30.56 kgs, 29.89 kgs, and 28.2 kgs, respectively, which would make them larger than both the 'Hand of Faith' nugget and the 'Normandy Nugget'. However, none of these other Brazilian gold nuggets has received fame in the same way as the Pepita Canaã nugget, and the Banco Central do Brasil seems to prefer to display them anonymously. Technically these other Brazilian gold nuggets from Serra Pelada would push both the Australian nuggets and the Ironstone nugget down the list.

Two historic gold nuggets found in Victoria, Australia in the 1800s were both larger than the Brazilian Pepita Canaã nugget, and both at times still appear in "world's largest gold nugget lists". The first of these was "The Welcome" nugget found in Ballarat in 1858 during the Victoria gold rush. This gold nugget weighed approximately 69.98 kgs. However, "The Welcome" was subsequently shipped to England and melted down by the Royal Mint in 1859 to fabricate Gold Sovereign coins. Replicas of "The Welcome" can still be seen today in a number of Australian museums. 

The 2nd large historical gold nugget found in Australia was the  “Welcome Stranger” which was discovered in Victoria in 1869. Reports as to its weight vary but are consistently above 70 kgs of gold content. Within a few days of it being found, the Welcome Stranger was cut up, melted down into ingots, and shipped to the Bank of England via Melbourne. However, a replica of the Welcome Stranger nugget can still be seen today at the City Museum in Melbourne.