Rare Earth Elements (Encore)
11:27 Share

The following is an Encore presentation of Everything Everywhere Daily. Modern society is completely dependent upon a set of technologies that includes computer chips, fiber optic cables, lasers, video screens, electric motors, and batteries.

All of those things are dependent upon a small category of chemicals called rare earth elements. Their importance in technology has made them a focal point of international trade and politics. Learn more about rare earth elements and how the world has become completely reliant on them on this episode of Everything Everywhere Daily. Music

This episode is sponsored by Quince. Vacation season is nearly upon us, and you've heard me talk before about my favorite blanket and towels that I got from Quince, but did you know that they also have a collection of great travel products? Like lightweight shirts and shorts from just $30, pants for any occasion, and comfortable lounge sets. They also have premium luggage options and durable duffel bags to carry everything in.

The best part? All Quince items are priced 50 to 80% less than similar brands. By partnering directly with top factories, Quince cuts out the cost of the middleman and passes the savings on to us. And Quince only works with factories that use safe, ethical, and responsible manufacturing practices and premium fabrics and finishes.

For your next trip, treat yourself to the luxury upgrades you deserve from Quince. Go to quince.com slash daily for 365-day returns, plus free shipping on your order. That's q-u-i-n-c-e dot com slash daily to get free shipping and 365-day returns. quince.com slash daily

This episode is sponsored by Mint Mobile. Do you say data or data? Well, I say data. And for the longest time, I thought paying a fortune on my monthly data plan was just normal. That wasn't until I found out about Mint Mobile and their premium wireless plans that start at just $15 a month. With Mint Mobile, I use the exact same network on the exact same cell towers I used before with the exact same phone and exact same phone number. The only thing that isn't the same are the monthly fees.

All plans come with high-speed data or high-speed data, your choice, as well as unlimited talk and text delivered on the nation's largest 5G network. No matter how you say it, don't overpay for it. Shop data plans at mintmobile.com slash EED. That's mintmobile.com slash EED.

Upfront payment of $45 for a three-month 5GB plan required, equivalent to $15 a month. New customer offer for the first three months only, then full price plan options available. Taxes and fees extra, see Mint Mobile for details. So let's start out with the fundamentals. What is a rare earth element? There are 17 rare earth elements on the periodic table. The two lightest are scandium and yttrium, which are located in the third period or the third column of the periodic table.

The other 15 are the lanthanide elements. If you've looked at a periodic table, you might remember that there's a section of elements that are separated from the rest and form two rows at the bottom. The lanthanides are the top row of those two rows. The 15 lanthanide elements are lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadololinium, terbium, dysprosium, holmium, erbium, thulium, ethylum,

ytterbium, and lutetium. And I just want to say that after reading that list, my hat goes off to Tom Lehrer. So I think it's fair to say that for the most part, none of us deal with these elements on a daily basis. They're all soft, silvery metals that are rather heavy. However, I don't want to get into a chemistry analysis of each element because that would be painfully boring and most of you would wind up pouring wax in your ears. I will just add as a fun fact that four of those 17 elements are named after the tiny village of Ytterby in Sweden.

What's really interesting about rare earth elements is their importance in the world economy, because they are really, really important. If you remember back to my previous episodes on specific elements in the periodic table, most elements were discovered in the 19th and early 20th centuries. It became a lot easier once the periodic table of elements was set, and it was possible to see where the holes were to fill them in.

Here, I should note that most of the rare earth elements are not in fact all that rare. To be sure, they aren't as common as iron or silicon, but most of them are on a par with other metals like tin or gold. The least common element is promethium, which actually is quite rare and radioactive, but the most common element is cerium, which is the 25th most common element in the earth's crust.

The rare earth elements weren't really that big of a deal prior to the year 1965. They were more of a curiosity, and they didn't have that much economic value. So, what happened in 1965? And the answer is color television. It turned out that one of the key components for color TVs was the element europium. As color TVs were a huge thing for TV manufacturers, there was suddenly a huge rush to find europium.

The mineral monzonite would often have a europium content of about 0.05%. However, a location was discovered in California, just over the border from Las Vegas, which had a europium content of a whopping 0.1%.

Over the years, more and more uses were found for rare earth elements. One of the biggest uses was found in extremely strong natural magnets, in particular neodymium magnets. They were discovered in 1984 by General Motors, and they are the strongest commercially available natural magnets that you can buy today. They can support thousands of times their own weight and have applications in whatever you can use magnets for. You can either get more magnetism for something the same size or the same amount of magnetism for something much smaller.

Neodymium magnets are something you're probably familiar with, but the applications for rare earth elements are almost endless. Almost every technology product you can think of has at least some trace amounts of rare earth elements in them.

Lasers, hard drives, MRI machines, batteries, high-intensity lights, computer chips, fuel cells, nuclear reactors, LEDs, solar panels, wind turbines, jet engines, various military equipment, everything. Whatever you are listening to this podcast on right now has some rare earth elements in it. So it shouldn't be too difficult to see just how important these elements are to the world economy. No more rare earth elements, no more modern technology.

So, where do these rare earth elements come from? Before World War II, what little production of rare earth elements there was all came from easily mineable sands in India and Brazil. Because it was sand, it didn't require a huge operation to extract the ore, and there wasn't a lot of demand anyhow, so not much needed to be produced. Through most of the 1950s, most of the world's production was located in a single location, the Steenkampskral mine in South Africa.

That shifted when the aforementioned Mountain Pass mine opened in California. Again, this single mine was responsible for most of the rare earth mineral production in the world for several years. Through the 1980s, the production of rare earth elements was rather low. In 1980, there was only about 30,000 metric tons of rare earth elements produced worldwide from mining operations, with about half that coming from the United States.

Then, in the 1980s, Chinese leader Deng Xiaoping made what was in hindsight a brilliant decision. He made the production and processing of rare earth minerals a priority for China. As he noted in 1992, quote, The Middle East has oil. China has rare earths. That there was going to be a massive increase in demand for rare earth elements was a pretty easy prediction. Even in the 80s and 90s, more and more technologies were finding uses for rare earth elements.

Chinese production began expanding dramatically throughout the 1990s, and U.S. production began to decline. By 2010, worldwide production was at 130,000 metric tons per year, and China's share of the global market was over 97%. While China had a near monopoly on rare earth element production, it wasn't because China had all the rare earth elements. China certainly does have a lot of them, but it's estimated they only have about a third of the world's reserves.

The reason why their share of the global market was so great had more to do with prices than with the number of rare earth elements available. China was able to undercut global prices, which drove many non-Chinese producers bankrupt, including the Mountain Pass Mine in California.

However, global demand for rare earth metals hasn't decreased. Since 2010, global production has almost doubled, but production in China has remained somewhat flat. They are still the largest producer in the world by a wide margin, but now other countries have been ramping up their own production.

Demand for rare earth elements will probably increase even faster in the not-so-distant future. Electric cars are heavily dependent on rare earths. Electric motors require their use for magnets. A Toyota Prius has about 25 pounds or 10 kilograms of lanthanum.

Likewise, generators and windmills need rare earth metals, as do solar panels and even the magnets in nuclear fusion reactors. While the world isn't running out of rare earth metals, many companies are working on alternative technologies which eliminate or reduce the amount of rare earth elements required. However, it's impossible to totally eliminate them. Likewise, nations are starting to explore for more rare earth elements.

The United States, Australia, Canada, South Africa, and many other countries have begun searching for more rare earth deposits. It can be difficult to do because you can't just look for ore sticking out of the ground like you might for other metals. The Mountain Pass mine in California was considered good because it had a whopping 0.1% europium, and the best mine in the world is one in China which has a whopping 0.2%.

A massive find was made in Afghanistan back in 2011, but so far it hasn't been possible to begin mining, and it isn't even known if it will begin any time soon. The United States military has been trying to stockpile strategic reserves of rare earth metals. It's been said the total U.S. reserves could fit in a suitcase. This has included reopening the Mountain Pass mine in California, which was mothballed in 2015. Another program has been increasing the recycling of rare earth metals. Because they're elements, they can be efficiently recycled.

As old electric cars and other electronics become retired, this will become more and more important as it will recover more and more rare earth elements. In the very distant future, it might even be entirely possible to find some of these elements on asteroids or even on the moon. These strange elements with funny names have become vital to our modern world and will become even more important in the not-so-distant future. The elements which were once novelties less than a century ago now have become indispensable.

The executive producer of Everything Everywhere Daily is Charles Daniel. The associate producers are Austin Oakton and Cameron Kiefer. I want to thank everyone who supports the show over on Patreon. Your support helps make this podcast possible. I'd also like to thank all the members of the Everything Everywhere community who are active on the Facebook group and the Discord server. If you'd like to join in the discussion, there are links to both in the show notes. And as always, if you leave a review or send me a boostagram, you too can have it read on the show.