Exploration for beryllium at the Helen Beryl, Elkhorn, and Tin Mountain pegmatites, Custer County, South Dakota / by Mortimer H. Staatz, Lincoln R. Page, James J. Norton, and Verl R. Wilmarth.
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Corporate Authors: | , |
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Other Authors: | , , , |
Other title: | Pegmatites and other Precambrian rocks in the southern Black Hills. |
Format: | Government Document Book |
Language: | English |
Published: |
Washington :
U.S. Govt. Print. Off,
1963.
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Series: | Pegmatites and other Precambrian rocks in the southern Black Hills.
Geological Survey professional paper ; 297-C. |
Subjects: |
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