Pegmatite investigations in Colorado, Wyoming and Utah 1942-1944 /

"A report on resources of beryllium, tantalum and lithium minerals, and of muscovite."

Bibliographic Details

Main Author:	Hanley, John B. (John Bernard), 1913-
Format:	Government Document Book
Language:	English
Published:	Washington : U.S. Govt. Print. Off, 1950.
Series:	United States. Geological Survey. Professional paper ; 227
Subjects:	Pegmatites. Mines and mineral resources > Colorado. Mines and mineral resources > Wyoming. Mines and mineral resources > Utah. Pegmatit. Colorado (Staat) Utah. Wyoming.