Mining
The 50 Minerals Critical to U.S. Security
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The 50 Minerals Critical to U.S. Security
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The U.S. aims to cut its greenhouse gas emissions in half by 2030 as part of its commitment to tackling climate change, but might be lacking the critical minerals needed to achieve its goals.
The American green economy will rely on renewable sources of energy like wind and solar, along with the electrification of transportation. However, local production of the raw materials necessary to produce these technologies, including solar panels, wind turbines, and electric vehicles, is lacking. Understandably, this has raised concerns in Washington.
In this graphic, based on data from the U.S. Geological Survey, we list all of the minerals that the government has deemed critical to both the economic and national security of the United States.
What are Critical Minerals?
A critical mineral is defined as a non-fuel material considered vital for the economic well-being of the world’s major and emerging economies, whose supply may be at risk. This can be due to geological scarcity, geopolitical issues, trade policy, or other factors.
In 2018, the U.S. Department of the Interior released a list of 35 critical minerals. The new list, released in February 2022, contains 15 more commodities.
Much of the increase in the new list is the result of splitting the rare earth elements and platinum group elements into individual entries rather than including them as “mineral groups.” In addition, the 2022 list of critical minerals adds nickel and zinc to the list while removing helium, potash, rhenium, and strontium.
Mineral | Example Uses | Net Import Reliance |
---|---|---|
Beryllium | Alloying agent in aerospace, defense industries | 11% |
Aluminum | Power lines, construction, electronics | 13% |
Zirconium | High-temparature ceramics production | 25% |
Palladium | Catalytic converters | 40% |
Germanium | Fiber optics, night vision applications | 50% |
Lithium | Rechargeable batteries | 50% |
Magnesium | Alloys, electronics | 50% |
Nickel | Stainless steel, rechargeable batteries | 50% |
Tungsten | Wear-resistant metals | 50% |
Barite | Hydrocarbon production | 75% |
Chromium | Stainless steel | 75% |
Tin | Coatings, alloys for steel | 75% |
Cobalt | Rechargeable batteries, superalloys | 76% |
Platinum | Catalytic converters | 79% |
Antimony | Lead-acid batteries, flame retardants | 81% |
Zinc | Metallurgy to produce galvanized steel | 83% |
Titanium | White pigment, metal alloys | 88% |
Bismuth | Medical, atomic research | 94% |
Tellurium | Solar cells, thermoelectric devices | 95% |
Vanadium | Alloying agent for iron and steel | 96% |
Arsenic | Semi-conductors, lumber preservatives, pesticides | 100% |
Cerium | Catalytic converters, ceramics, glass, metallurgy | 100% |
Cesium | Research, development | 100% |
Dysprosium | Data storage devices, lasers | 100% |
Erbium | Fiber optics, optical amplifiers, lasers | 100% |
Europium | Phosphors, nuclear control rods | 100% |
Fluorspar | Manufacture of aluminum, cement, steel, gasoline | 100% |
Gadolinium | Medical imaging, steelmaking | 100% |
Gallium | Integrated circuits, LEDs | 100% |
Graphite | Lubricants, batteries | 100% |
Holmium | Permanent magnets, nuclear control rods | 100% |
Indium | Liquid crystal display screens | 100% |
Lanthanum | Catalysts, ceramics, glass, polishing compounds | 100% |
Lutetium | Scintillators for medical imaging, cancer therapies | 100% |
Manganese | Steelmaking, batteries | 100% |
Neodymium | Rubber catalysts, medical, industrial lasers | 100% |
Niobium | Steel, superalloys | 100% |
Praseodymium | Permanent magnets, batteries, aerospace alloys | 100% |
Rubidium | Research, development in electronics | 100% |
Samarium | Cancer treatment, absorber in nuclear reactors | 100% |
Scandium | Alloys, ceramics, fuel cells | 100% |
Tantalum | Electronic components, superalloys | 100% |
Terbium | Permanent magnets, fiber optics, lasers | 100% |
Thulium | Metal alloys, lasers | 100% |
Ytterbium | Catalysts, scintillometers, lasers, metallurgy | 100% |
Yttrium | Ceramic, catalysts, lasers, metallurgy, phosphors | 100% |
Iridium | Coating of anodes for electrochemical processes | No data available |
Rhodium | Catalytic converters, electrical components | No data available |
Ruthenium | Electrical contacts, chip resistors in computers | No data available |
Hafnium | Nuclear control rods, alloys | Net exporter |
The challenge for the U.S. is that the local production of these raw materials is extremely limited.
For instance, in 2021 there was only one operating nickel mine in the country, the Eagle mine in Michigan. The facility ships its concentrates abroad for refining and is scheduled to close in 2025. Likewise, the country only hosted one lithium mine, the Silver Peak Mine in Nevada.
At the same time, most of the country’s supply of critical minerals depends on countries that have historically competed with America.
China’s Dominance in Minerals
Perhaps unsurprisingly, China is the single largest supply source of mineral commodities for the United States.
Cesium, a critical metal used in a wide range of manufacturing, is one example. There are only three pegmatite mines in the world that can produce cesium, and all were controlled by Chinese companies in 2021.
Furthermore, China refines nearly 90% of the world’s rare earths. Despite the name, these elements are abundant on the Earth’s crust and make up the majority of listed critical minerals. They are essential for a variety of products like EVs, advanced ceramics, computers, smartphones, wind turbines, monitors, and fiber optics.
After China, the next largest source of mineral commodities to the United States has been Canada, which provided the United States with 16 different elements in 2021.
The Rising Demand for Critical Minerals
As the world’s clean energy transitions gather pace, demand for critical minerals is expected to grow quickly.
According to the International Energy Association, the rise of low-carbon power generation is projected to triple mineral demand from this sector by 2040.
The shift to a sustainable economy is important, and consequently, securing the critical minerals necessary for it is just as vital.
Uranium
Charted: Global Uranium Reserves, by Country
We visualize the distribution of the world’s uranium reserves by country, with 3 countries accounting for more than half of total reserves.
Charted: Global Uranium Reserves, by Country
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There can be a tendency to believe that uranium deposits are scarce from the critical role it plays in generating nuclear energy, along with all the costs and consequences related to the field.
But uranium is actually fairly plentiful: it’s more abundant than gold and silver, for example, and about as present as tin in the Earth’s crust.
We visualize the distribution of the world’s uranium resources by country, as of 2021. Figures come from the World Nuclear Association, last updated on August 2023.
Ranked: Uranium Reserves By Country (2021)
Australia, Kazakhstan, and Canada have the largest shares of available uranium resources—accounting for more than 50% of total global reserves.
But within these three, Australia is the clear standout, with more than 1.7 million tonnes of uranium discovered (28% of the world’s reserves) currently. Its Olympic Dam mine, located about 600 kilometers north of Adelaide, is the the largest single deposit of uranium in the world—and also, interestingly, the fourth largest copper deposit.
Despite this, Australia is only the fourth biggest uranium producer currently, and ranks fifth for all-time uranium production.
Country | Share of Global Reserves | Uranium Reserves (Tonnes) |
---|---|---|
🇦🇺 Australia | 28% | 1.7M |
🇰🇿 Kazakhstan | 13% | 815K |
🇨🇦 Canada | 10% | 589K |
🇷🇺 Russia | 8% | 481K |
🇳🇦 Namibia | 8% | 470K |
🇿🇦 South Africa | 5% | 321K |
🇧🇷 Brazil | 5% | 311K |
🇳🇪 Niger | 5% | 277K |
🇨🇳 China | 4% | 224K |
🇲🇳 Mongolia | 2% | 145K |
🇺🇿 Uzbekistan | 2% | 131K |
🇺🇦 Ukraine | 2% | 107K |
🌍 Rest of World | 9% | 524K |
Total | 100% | 6M |
Figures are rounded.
Outside the top three, Russia and Namibia both have roughly the same amount of uranium reserves: about 8% each, which works out to roughly 470,000 tonnes.
South Africa, Brazil, and Niger all have 5% each of the world’s total deposits as well.
China completes the top 10, with a 3% share of uranium reserves, or about 224,000 tonnes.
A caveat to this is that current data is based on known uranium reserves that are capable of being mined economically. The total amount of the world’s uranium is not known exactly—and new deposits can be found all the time. In fact the world’s known uranium reserves increased by about 25% in the last decade alone, thanks to better technology that improves exploration efforts.
Meanwhile, not all uranium deposits are equal. For example, in the aforementioned Olympic Dam, uranium is recovered as a byproduct of copper mining occurring at the same site. In South Africa, it emerges as a byproduct during treatment of ores in the gold mining process. Orebodies with high concentrations of two substances can increase margins, as costs can be shared for two different products.
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