gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1888.008.37.04 On Dufrenite from Cornwall Kinch EdwardProf. F.C.S., F.I.C., etc., Royal Agricultural College, Cirencester. 10 1888 8 37 112 115 Copyright © 1888, The Mineralogical Society 1888