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• Organization: National Institute of Standards and Technology
• Updated: 2014-09-19 00:00:00 | Harvested: June 27, 2025 at 06:54 PM

References contained in this database are from Bibliography on Atomic Energy Levels and Spectra, NBS Special Publication 363 and Supplements, as well as current references since the last published...

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• Organization: Department of the Interior
• Updated: 20230126 | Harvested: July 16, 2025 at 09:01 AM

This data release contains the U.S. salient statistics and world production data extracted from the RARE EARTHS data sheet of the USGS Mineral Commodity Summaries 2023.

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• Organization: Department of the Interior
• Updated: 20240130 | Harvested: July 16, 2025 at 07:16 AM

This data release contains the U.S. salient statistics and world production data extracted from the RARE EARTHS data sheet of the USGS Mineral Commodity Summaries 2024.

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• Organization: Department of the Interior
• Updated: 20220811 | Harvested: July 16, 2025 at 10:32 AM

This data release contains geochemical data from selected U.S. Geological Survey (USGS) projects from the 1960s-1980s that were previously unpublished as digital data. The objective of those...

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