This book presents an uncritical summary of thermodynamic data for common minerals and compounds at ambient surface conditions, with complete references for the data. Values of the enthalpy of formation, Gibbs energy of formation, and entropy for common elements, aqueous species, gases, liquids, minerals (many of which are usually not found in critical tables) and related substances are brought together. Because the summary is uncritical, all available values for the various species are included, allowing readers to make a choice among the data compiled by various groups. The table is an important reference for geochemists, geologists, and chemists.