Revised values for the Gibbs free energy of formation of [Al(OH)4 aq-], diaspore, boehmite and bayerite at 298.15 K and 1 bar, the thermodynamic properties of kaolinite to 800 K and 1 bar, and the heats of solution of several gibbsite samples - Hemingway, B.; Robie, R.; Kittrick, J.A. (Geochimica et Cosmochimica Acta, 1978)