Crystal chemistry of sulfate minerals / Frank C. Hawthorne, Sergev V. Krivovichev and Peter C. Burns -- X-ray and vibrational spectroscopy of sulfate in earth materials / Satish C. B. Myneni -- Sulfate minerals in evaporite deposits / Ronald J. Spencer -- Barite-celestine geochemistry and environments of formation / Jeffrey S. Hanor -- Precipitation and dissolution of alkaline earth sulfates: kinetics and surface energy / A. Hina and G. H. Nancollas -- Metal-sulfate salts from sulfide mineral oxidation / John L. Jambor, D. Kirk Nordstrom, Charles N. Alpers -- Iron and aluminum hydroxysulfates from acid sulfate waters / J. M. Bigham, D. Kirk Nordstrom -- Jarosites and their application in hydrometallurgy / John E. Dutrizac, John L. Jambor -- Alunite-jarosite crystallography, thermodynamics, and geochronology / R. E. Stoffregen, C. N. Alpers, J. L. Jambor -- Solid-solution solubilities and thermodynamics: sulfates, carbonates and halides / Pierre Glynn -- Predicting sulfate-mineral solubility in concentrated waters / Carol Ptacek, David Blowes -- Stable isotope systematics of sulfate minerals / Robert R. Seal, II, Charles N. Alpers, Robert O. Rye