The long-term stability of nuclear waste forms or barriers is related to changes in physical properties of the material induced through radiation damage and subsequent changes in solubility. Investigations conducted on natural zircons (ZrSiO{sub 4}) supports a positive correlation between level of alpha damage and fluid composition to enhanced levels of corrosion. In this report we present preliminary data on the nature and rate of the solution process involving < 600,000 year-old zircons being affected by natural fluids in geyser fields of Yellowstone National Park. We also summarize our continuing activity by including in this report articles that have been published or are in press in refereed journals.