JohnRyan MacGregor (left) and Richard Herd looking at marble associated with prismatine-bearing rocks JohnRyan MacGregor, an M.S. student working with Research Professor Ed Grew, took two trips in May and June, 2011 related to his investigations into boron-bearing minerals in granulite facies rocks and the crustal boron budget. The first trip was to read more Student research update: JohnRyan MacGregor