The Geochemist's Workbench has from its introduction in 1991 set the standard in geochemical modeling. More than 3000 copies have been licensed and installed in 64 countriespan class="Apple-converted-space"> around the world. . With its crisp user interface, fully integrated graphics, highly optimized algorithms, and advanced software architecture, the GWB makes quick work of geochemistry tasks small and large.

Already a GWB user? GWB10 is better, easier, and faster. Model transport of colloids and the ions sorbed to them. A newdashboard puts all the power of the GWB at your fingertips. There is a new thermo data editor. The reactive transport models boast spherical and axisymetric coordinates, and transient properties for the medium and fluid. GSS includes undo-redo, and the apps have MATLAB bindings. Turbo-scripting speeds the evaluation of rate law equations and scripts. The package is Windows 8 friendly but still plays nicely with Windows 7. A must-have upgrade for every GWB user.

New to the GWB? The package comes in three editions that run under MS Windows (tips for Mac users). Look below to find the version that meets your needs.

	GWB Professional The Geochemist's Workbench Professional edition is the complete software package. Create spreadsheets and specialty diagrams, trace reaction models, and simulate 1-D and 2-D reactive, bioreactive and colloidal transport. GWB Pro accounts for equilibrium and kinetic reactions inheterogeneous, dual-porosity media, including simulation of microbial metabolism and growth. Only the professional edition is multithreaded. And only GWB Pro lets you animate your results and create video clips in just moments.
	GWB Standard The Geochemist's Workbench Standard edition is your choice for spreadsheets, diagrams, and multicomponentreaction modeling. Plot how species distributions change, model water-rock interaction, and simulate fluid mixing. Integrate kinetic rate laws for mineral dissolution and precipitation, complex association and dissociation, sorption and desorption, redox transformation, and gas transfer. Model microbial metabolism and growth.
	GWB Essentials The Geochemist's Workbench Essentials edition performs the most common tasks in geochemical modeling. With a few clicks, you can balance reactions, figure equilibrium constants, and make Eh-pH diagrams. The package features a spreadsheet designed for geochemical analyses. Instantly convert units or figure mineral saturation for all your samples. Create time series and cross plots, and ternary, Piper, or Stiff diagrams. And that's just the beginning.