gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1998.62A.2.109 Diffusion of C and O in Calcite Labotka T. C. Department of Geological Sciences, University of Tennessee, Knoxville TN 37996-1410, USA Cole D. R. Riciputi L. R. Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge TN 37831-6110, USA Chacko T. Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton Alberta, Canada T6G 2E3 1998 62A 2 840 841 Copyright © 1998, The Mineralogical Society 1998