Figure 5

Evolution of volumetric ratios among crystalline phases in GC during immersion: (a) Fluorite-to-apatite and (b) xonotlite-to-wollastonite. (For samples P4-816 and P5-778, the xonotlite-to-wollastonite ratio at later time points could not be calculated because of very low wollastonite concentrations.)