Pegmatite investigations in Colorado, Wyoming and Utah 1942-1944, by John B. Hanley, E. Wm. Heinrich and Lincoln R. Page; a report on resources of beryllium, tantalum and lithium minerals, and of muscovite.

By: Material type: TextTextPublication details: Washington, U.S. Govt. Print. Off., 1950.Description: vi, 125 p. plates, maps (part fold. in pocket) diagrs. 29 cmSubject(s): DDC classification:
  • 552.1
LOC classification:
  • QE75 .P9 no. 227
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