1. Beryllium content of volcanic rocks : an evaluation of the relation of beryllium content to silica, water, and fluorine content and to geographic locations of 1,179 samples of volcanic rocks, mostly from the Western United States Author/Creator: Shawe, Daniel R., 1925- author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1966 Resource Type: Book Access & Availability: Loading