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Aluminum: The Metal Extraordinaire

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Aluminum: The Metal Extraordinaire

Aluminum: The Metal Extraordinaire

Aluminum (or aluminium) is the world’s most common metal by crustal abundance, making up 8.2% of mass. It’s more common than iron (5.6%) and a whopping 1200x more abundant than copper.

Despite its prevalence, aluminum was not isolated all the way until 1827. This is because it occurs only in compounds, and never in a free form. It also turns out that removing aluminum from these compounds is quite difficult, and an inexpensive process wasn’t discovered until 1886 by a college student in the United States. Charles Martin Hall was interested in the problem, and ran an electric current through a molten mixture of cryolite and aluminum oxide in a wood shed behind his house.

That dropped the price of aluminum drastically, and it became a household metal. Behind iron, aluminum is now the second most used metal in the world. Aluminum can now be found in everything: transportation (planes, cars, and more), buildings, machinery, consumer durables, packaging, and electrical uses.

Original graphic from: GutterMasters

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Technology Metals

Charted: Where the U.S. Gets Its Rare Earths From

China accounts for 70% of U.S. rare earth imports.

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Between 2020 and 2023, China accounted for 70% of U.S. rare earth imports. This chart shows where the U.S. gets its rare earths from.

Charted: Where the U.S. Gets Its Rare Earths From

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

China dominates the global supply of rare earth elements (REEs)—a group of 17 minerals vital to everything from smartphones and electric vehicles to guided missiles and satellites.

Between 2020 and 2023, China accounted for 70% of U.S. rare earth imports, making it by far the country’s top supplier. Malaysia, Japan, and Estonia round out the top four.

CountryShare of U.S. Imports
🇨🇳 China70%
🇲🇾 Malaysia13%
🇯🇵 Japan6%
🇪🇪 Estonia5%
🌐 Others6%

This chart breaks down America’s rare earth import sources. The data comes from the U.S. Geological Survey, Mineral Commodity Summaries, as of January 2025, and Statista.

China’s Grip on Rare Earths

Despite their name, rare earths are relatively abundant in the Earth’s crust. The challenge lies in finding them in high enough concentrations—and processing them economically and sustainably.

China produces around 90% of the world’s refined rare earths and is home to the largest capacity for separation and purification, giving it a chokehold on global supply chains.

Take yttrium, for example—used in radar systems, lasers, and television screens. Between 2020 and 2023, 93% of all yttrium compounds imported into the U.S. came from China.

Other critical rare earths affected by this supply concentration include:

  • Samarium
  • Gadolinium
  • Terbium
  • Dysprosium
  • Lutetium
  • Scandium

Many of these elements are essential in military applications, electric motors, and next-gen electronics. Companies like Lockheed Martin, Tesla, and Apple rely on these materials in their core products.

Tariffs, Tensions, and Export Controls

As part of its response to Donald Trump’s new tariffs on Chinese goods, China recently expanded export restrictions on seven rare earth elements, temporarily suspending overseas shipments of the minerals.

The U.S. currently has only one rare earth mine: the Mountain Pass mine in California. While it’s one of the richest rare earth deposits globally, nearly all of the ore extracted there is still shipped to China for final processing.

To diversify away from Chinese dependence, the U.S. has been actively seeking new supply partnerships. One potential opportunity is in Ukraine, which holds Europe’s largest recoverable rare earth reserves. Currently, the Trump administration is working to close a deal to secure access to these untapped resources.

Learn More on the Voronoi App 

If you enjoyed this graphic, be sure to check out this chart illustrating the GDP impact of Trump’s tariffs on China.

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Misc

Charted: The End-of-Life Recycling Rates of Select Metals

End-of-life recycling rates measure the percentage of a material that is recovered at the end of its useful life, rather than being disposed of or incinerated.

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A chart ranking the end-of-life recycling rates (EOL-RR) of commonly used metals in the economy, per 2021 data from the International Energy Agency.

Charted: The End-of-Life Recycling Rates of Select Metals

This was originally posted on our Voronoi app. Download the app for free on Apple or Android and discover incredible data-driven charts from a variety of trusted sources.

We visualize the end-of-life recycling rates (EOL-RR) of commonly used metals in the economy. Data is sourced from the International Energy Agency, last updated in 2021.

ℹ️ EOL-RR is the percentage of a material or product that is recycled or recovered at the end of its useful life, rather than being disposed of in landfills or incinerated.

Tracking recycling rates helps manage resources better and make smarter policies, guiding efforts to cut down on waste.

Ranked: The End of Life Recycling Rates of Select Metals

Gold has an 86% recycling rate according to the latest available data. Per the Boston Consulting Group, one-third of total gold supply was met through recycling between 1995–2014.

MetalEnd-of-life recycling
rate (2021)
🔍 Used In
Gold86%💍 Jewelry / Electronics
Platinum/Palladium60%🔬 Optical fibers / Dental fillings
Nickel60%🔋 Batteries / Turbine blades
Silver50%💍 Jewelry / Mirrors
Copper46%🔌 Electrical wiring / Industrial equipment
Aluminum42%✈️ Aeroplane parts / Cans
Chromium34%🍽️ Stainless steel / Leather tanning
Zinc33%🔗 Galvanizing metal / Making rubber
Cobalt32%🔋 Batteries / Turbine engines
Lithium0.5%🔋 Batteries / Pacemakers
REEs0.2%📱 Mobile phones / Hard drives

Note: Figures are rounded.

Several factors can influence metal recycling rates. According to this International Resource Panel report, metals that are used in large quantities (steel) or have a high value (gold) tend to have higher recycling rates.

However, for materials used in small quantities in complex products (rare earth elements in electronics), recycling becomes far more challenging.

Finally, a metal’s EOL-RR is strongly influenced by the least efficient link in the recycling chain, which is typically how it’s initially collected.

Learn More on the Voronoi App

If you enjoyed this post, check out Critical Materials: Where China, the EU, and the U.S. Overlap which shows how critical materials are classified within different jurisdictions.

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