Indiana University Bloomington Indiana University Bloomington IU Bloomington

Please choose the desired mineral for calculation:

Please enter a constant temperature (oC):

Please enter a constant pH:

Please enter the activity of pFe³⁺:

Please enter the activity of pO₂:

Please enter the activity of pHCO₃^- for Calcite or pCO₂ for other carbonate minerals:

Department of Earth and Atmospheric Sciences
Indiana University MSBII 424
725 N. Walnut Grove
Bloomington IN 47405

812-856-1884