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Pegmatite investigations in Colorado, Wyoming and Utah, 1942-1944
Heinrich, E. William (Eberhardt William)
1 online resource (vi, 125 pages) : illustrations, maps + 15 plates.
"A report on resources of beryllium, tantalum and lithium minerals, and of muscovite."
by John B. Hanley, E. Wm. Heinrich, and Lincoln R. Page.
Includes bibliographical references and index.
Pegmatite investigations in Colorado, Wyoming and Utah 1942-1944
Geological Survey professional paper ; 227