gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1998.62A.1.21 Divergent Behaviour of Dissolved Cobalt and Manganese in Freshwater Aquatic Systems; influence on Particle and Colloid Adsorption Albrecht A. Sigg L. Xue H. EAWAG, Überlandstr. 133, CH-8600 Dübendorf, Switzerland Lazarev V. SPSTU, St. Petersburg, Polytechnicheskaya, 29, 195251 Russia 1998 62A 1 40 41 Copyright © 1998, The Mineralogical Society 1998