Methodology and Technical Input for the 2025 U.S. List of Critical Minerals—Assessing the Potential Effects of Mineral Commodity Supply Chain Disruptions on the U.S. Economy Open-File Report 2025–1047 U.S. Department of the Interior U.S. Geological Survey Cobalt chemicals (CN) Barite (IN) Titanium ferroalloys (CN) Silicon ferroalloys (RU) Zinc, smelted (CA) Copper, refined (CL) Potash (CA) Aluminum (CA) Ruthenium (ZA) Manganese metal (CN) Fluorspar, acidspar (CN) Iridium (ZA) Platinum (ZA) Palladium (ZA) Ma ...