Goechemical Modeling Links

Visual MINTEQ

http://www.lwr.kth.se/English/OurSoftware/vminteq/

USGS modeling software:

http://water.usgs.gov/software/water_quality.html

You should download PhreeqcI, version 2.10 (if you don't already have it)

http://www.planaria-software.com/    Distributes a free version of ArgusLab a molecular modeling program.

http://www.nature.com/news/2004/040913/full/040913-24.html