gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1990.054.376.18 Mineralogical Notes Alstonite In situ at Brownley Hill Mine, Nenthead, Cumbria Young B. British Geological Survey, Windsor Court, Windsor Terrace, Newcastle upon Tyne NE2 4HB Greenbank L. ‘Birchfield’, 16 Sedbergh Road, Kendal, Cumbria LA9 6AD Nancarrow P. H. A. British Geological Survey, Keyworth, Nottingham NGI2 5GG 9 1990 54 376 515 516 20 10 1989 20 12 1989 Copyright © 1990, The Mineralogical Society 1990 Keywords alstonite Brownley Hill Mine Cumbria