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4 results returnedSampling of Helen Beryl pegmatite Custer County, S. Dak.
Investigation of the Beecher no. 2 lithium-bearing pegmatite, Custer County, S. Dak.
Mineral resources of the Black Hills area, South Dakota and Wyoming,
Published Year
Subject
- Pegmatites--South Dakota--Custer County (2)
- Lithium ores--South Dakota--Custer County (1)
- Mines and mineral resources--South Dakota--Black Hills area (1)
- Mines and mineral resources--United States (1)
- Mines and mineral resources--Wyoming--Black Hills area (1)
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