| Abstract
| - The kinetics of dissolution of powdered Pentelic marble from two different sites located on MountPentelicon of Attica, Dionysos and Cave, were investigated. The results were compared with those ofsynthetically precipitated calcite, the main inorganic constituent (>98%) of the tested marbles. Thedissolution process at solution undersaturation near equilibrium in all cases showed a linear dependenceof the rates of dissolution on the relative solution undersaturation. The dissolution was found to bepolynuclear, surface diffusion controlled. Morphological examination of the specimens showed thatdissolution proceeds through formation of steps, cracks, pores, and layerwise disintegration, corroboratingthe conclusion from the kinetics results. Powdered marble is suggested to be an excellent model systemfor the investigation of marble dissolution as it exhibited remarkable similarities with the dissolution ofwhole marble blocks.
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