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Maker of UK Coins Starts Turning E-waste Into Gold

The Royal Mint plant in in Wales. Photo: The Royal Mint website
The Royal Mint plant in in Wales. Photo: The Royal Mint website
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Maker of UK Coins Starts Turning E-waste Into Gold

The Royal Mint plant in in Wales. Photo: The Royal Mint website
The Royal Mint plant in in Wales. Photo: The Royal Mint website

The Royal Mint, maker of the UK's coins, has begun processing electronic waste to extract gold from it, the BBC reported.

The company has built a large industrial plant on its site in Llantrisant in Wales to remove the precious metal from old circuit boards, it said on Wednesday.

The gold is initially being used to craft jewelry and later it will be made into commemorative coins.

At the Royal Mint plant, piles of circuit boards are being fed into the new facility.

First, they are heated to remove their various components. Then the array of detached coils, capacitors, pins and transistors are sieved, sorted, sliced and diced as they move along a conveyor belt.

Anything with gold in it is set aside.

“What we're doing here is urban mining,” says head of sustainability Inga Doak.

“We're taking a waste product that's being produced by society and we're mining the gold from that waste product and starting to see the value in that finite resource.”

The gold-laden pieces go to an on-site chemical plant.

They’re tipped into a chemical solution which leaches the gold out into the liquid.

This is then filtered, leaving a powder behind. It looks pretty nondescript but this is actually pure gold – it just needs to be heated in a furnace to be transformed into a gleaming nugget.

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Fossils Suggest Even Smaller ‘Hobbits’ Roamed an Indonesian Island 700,000 Years Ago

A fragment (left) of the upper arm bone called the humerus - belonging to a diminutive extinct human species called Homo floresiensis, that dates to about 700,000 years ago and was discovered at the Mata Menge site on the Indonesian island of Flores - is shown at the same scale as the humerus of a later Homo floresiensis fossil dating to 60,000 years ago from the Liang Bua cave site in Flores, in this handout image released on August 6, 2024. (Yousuke Kaifu/Handout via Reuters)
A fragment (left) of the upper arm bone called the humerus - belonging to a diminutive extinct human species called Homo floresiensis, that dates to about 700,000 years ago and was discovered at the Mata Menge site on the Indonesian island of Flores - is shown at the same scale as the humerus of a later Homo floresiensis fossil dating to 60,000 years ago from the Liang Bua cave site in Flores, in this handout image released on August 6, 2024. (Yousuke Kaifu/Handout via Reuters)
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Fossils Suggest Even Smaller ‘Hobbits’ Roamed an Indonesian Island 700,000 Years Ago

A fragment (left) of the upper arm bone called the humerus - belonging to a diminutive extinct human species called Homo floresiensis, that dates to about 700,000 years ago and was discovered at the Mata Menge site on the Indonesian island of Flores - is shown at the same scale as the humerus of a later Homo floresiensis fossil dating to 60,000 years ago from the Liang Bua cave site in Flores, in this handout image released on August 6, 2024. (Yousuke Kaifu/Handout via Reuters)
A fragment (left) of the upper arm bone called the humerus - belonging to a diminutive extinct human species called Homo floresiensis, that dates to about 700,000 years ago and was discovered at the Mata Menge site on the Indonesian island of Flores - is shown at the same scale as the humerus of a later Homo floresiensis fossil dating to 60,000 years ago from the Liang Bua cave site in Flores, in this handout image released on August 6, 2024. (Yousuke Kaifu/Handout via Reuters)

Twenty years ago on an Indonesian island, scientists discovered fossils of an early human species that stood at about 3 1/2 feet (1.07 meters) tall — earning them the nickname “hobbits.”

Now a new study suggests ancestors of the hobbits were even slightly shorter.

“We did not expect that we would find smaller individuals from such an old site,” study co-author Yousuke Kaifu of the University of Tokyo said in an email.

The original hobbit fossils — named by the discoverers after characters in “The Lord of the Rings” — date back to between 60,000 and 100,000 years ago. The new fossils were excavated at a site called Mata Menge, about 45 miles from the cave where the first hobbit remains were uncovered.

In 2016, researchers suspected the earlier relatives could be shorter than the hobbits after studying a jawbone and teeth collected from the new site. Further analysis of a tiny arm bone fragment and teeth suggests the ancestors were a mere 2.4 inches (6 centimeters) shorter and existed 700,000 years ago.

“They’ve convincingly shown that these were very small individuals,” said Dean Falk, an evolutionary anthropologist at Florida State University who was not involved with the research.

The findings were published Tuesday in the journal Nature Communications.

Researchers have debated how the hobbits – named Homo floresiensis after the remote Indonesian island of Flores – evolved to be so small and where they fall in the human evolutionary story. They're thought to be among the last early human species to go extinct.

Scientists don't yet know whether the hobbits shrank from an earlier, taller human species called Homo erectus that lived in the area, or from an even more primitive human predecessor. More research – and fossils – are needed to pin down the hobbits’ place in human evolution, said Matt Tocheri, an anthropologist at Canada's Lakehead University.

“This question remains unanswered and will continue to be a focus of research for some time to come,” Tocheri, who was not involved with the research, said in an email.