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.

Bibliographic Details

Corporate Authors:	Geological Survey (U.S.), United States. Bureau of Mines
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:	Minerals > Classification.