Hawley, C. C. 1929-

Geology and Beryllium deposits of the lake George (or Badger flats) Beryllium area, park and Jefferson counties, Colorado / by C. C. Hawley. -- Washington : United States Government Printing Office, 1969 - 44 p. + map. -- (Geological Survey Professional Paper ; 608-A).


Berilio
Colorado
Depósitos de minerales

553.684(788)
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