Principles of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey.
Definitions of mineral resource classification terms used by the U.S. Bureau of Mines and U.S. Geological Survey.
| Corporate Authors: | , |
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| Format: | Government Document Book |
| Language: | English |
| Series: | Geological Survey bulletin ;
1450-A. Mineral resource classification systems of the U.S. Bureau of Mines and U.S. Geological Survey. |
| Subjects: |
| Summary: | Definitions of mineral resource classification terms used by the U.S. Bureau of Mines and U.S. Geological Survey. |
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| Item Description: | A report published jointly by the U.S. Bureau of Mines and U.S. Geological Survey. |
| Physical Description: | v, 5 pages : illustrations ; 24 cm. |