Trulove, Susan2013-05-062013-05-062004-11-30http://hdl.handle.net/10919/21273Feldspars, which make up 60 percent of all the rock on the earth's surface, were little understood as recently as the 1950s. Professor Helen Megaw of Cambridge University was the expert and led a research group of Ph.D. students including Paul Ribbe who was to make significant advances in the crystallography of feldspars and, as a byproduct, launch a series of books that have become the definitive work on mineralogy.text/htmlIn CopyrightPress releaseVirginia Tech. University Relations