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Mineral resource classification / Minerals Yearbook / United States Geological Survey / Leonardite / Science / Geology / Economic geology / United States Bureau of Mines
Date: 1996-11-05 15:00:40
Mineral resource classification
Minerals Yearbook
United States Geological Survey
Leonardite
Science
Geology
Economic geology
United States Bureau of Mines

THE MINERAL INDUSTRY OF NORTH DAKOTA This chapter has been prepared under a Memorandum of Understanding between the U.S. Bureau of Mines, U.S. Department of the Interior, and the North Dakota Geological Survey for collec

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Source URL: minerals.usgs.gov

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