gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1998.62A.2.42 Organic Geochemistry of Solutions Liberated during Weathering of Stock-Piled Lignite and Bituminous Coal Jehlička J. Urban O. Tlustá K. Institute of Geochemistry, Faculty of Science, Charles University, 12843 Prague 2, Czech Rebublic Boháček Z. Czech Geological Institute, Organic geochernical branch, 60500 Brno, Czech Republic 1998 62A 2 712 713 Copyright © 1998, The Mineralogical Society 1998