gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1923.020.100.04 Occurrences of Zircon in the Dartmoor Granite Brammall Alfred M.Sc., D.I.C., F.G.S.Lecturer in Geology Harwood H. F. M.Sc., Ph.D.Lecturer in Chemistry Imperial College of Science and Technology, London 3 1923 20 100 27 31 Copyright © 1923, The Mineralogical Society 1923