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Federal
Graphite deposits in the United States
Department of the Interior —
This U.S. Geological Survey (USGS) data release provides the descriptions of 10 U.S. sites that include mineral regions, mineral occurrences, and mine features that... -
Federal
Indium deposits in the United States
Department of the Interior —
This U.S. Geological Survey (USGS) data release provides the descriptions of the only U.S. sites-including mining districts, mineral occurrences, and mine features-...