Monazite deposits, including major reserves at Lynas’ Mount Weld mine, are emerging as an alternative rare-earth feedstock that could dilute China’s dominance. But radioactive thorium and uranium complicate mining and processing.
Monazite—an often-overlooked mineral found in heavy sands and hard-rock deposits—is emerging as a potential lever for loosening China’s overwhelming control of the global rare-earth industry. One of the world’s most significant sources sits at Lynas Rare Earths’ Mount Weld mine in Western Australia, where large monazite-bearing deposits point to an alternative feedstock for the materials that power modern technology.
The contest over rare earths has become a defining geostrategic fight of the early 21st century. Across North America, Australasia, and Europe, mining firms, manufacturers, and government agencies are investing in new projects designed to reduce dependence on Chinese suppliers. The motivation is simple: Chinese companies dominate the market, accounting for roughly 90 percent of rare-earth oxides and rare-earth metals.
Rare earth elements are embedded in a sweeping range of products that underpin advanced manufacturing. They are used in semiconductors, LEDs, lasers, displays, specialized alloys, optical components, and catalysts critical to petroleum refining and chemical production. But the highest-stakes application is permanent magnets—the small components that enable high-torque, energy-efficient electric motors.
Those motors sit at the center of the electrifying economy: electric vehicles, home heating and cooling systems, industrial robots, appliances, and power tools all rely heavily on rare-earth magnets. Defense systems do too, with rare-earth-driven motors appearing in platforms from tactical drones to ballistic-missile submarines. For any industrial economy that wants to stay competitive in high-tech manufacturing, stable access to rare earths—or to products derived from them—has become a strategic necessity.
Yet the traditional supply chain, long anchored in China, is increasingly viewed as vulnerable. So many governments and companies are scrambling to diversify supply that some analysts have begun describing the situation as a “mineral war.” The challenge, however, is not just geopolitical. The rare-earth business is notorious for volatility and technical complexity, with projects frequently derailed by difficult chemistry, high capital costs, and shifting market prices.
Within that turbulence, a number of industry specialists see monazite as a practical route forward. The ore can contain substantial concentrations of high-value rare earths, including neodymium, praseodymium, and dysprosium—elements essential for the highest-performance magnets. Jack Lifton, a veteran rare-earth analyst and cochairman of the Critical Minerals Institute who has followed the sector since 1962, argues that monazite has become the key ore for any serious effort to build non-Chinese supply chains. “The future is monazite,” he says, calling it, in his view, the most important rare-earth ore available today.
The promise comes with a major constraint: monazite commonly carries radioactive thorium and uranium. That makes mining, storage, and processing subject to strict government oversight, requiring specialized techniques and long-term isolation of mildly radioactive waste streams.
Despite those hurdles, investment is accelerating. In the United States, Energy Fuels—operator of the country’s only conventional uranium mill—has developed an extraction process to produce mixed oxides of neodymium and praseodymium, along with pilot-scale quantities of dysprosium and terbium oxides, two “heavy” rare earths that are otherwise produced almost entirely in China. The company is processing monazite at its White Mesa Mill in southeastern Utah, where radioactive residues are stored in a tailings impoundment.
Energy Fuels has also spent more than $200 million to secure monazite assets in Brazil and Madagascar, and says it intends to expand rare-earth production capacity.
Why it matters
Rare-earth magnets are foundational to electrification and advanced defense systems, but today’s supply chain is heavily concentrated in China. Monazite could broaden access to critical elements such as neodymium, praseodymium, dysprosium, and terbium—if companies can navigate the regulatory and waste challenges tied to radioactive byproducts. The next test will be whether new monazite-based projects can scale reliably and competitively outside China.