“…However, experimental studies conducted on silicates in H 2 O above 0.5 GPa chiefly focus on the solubility of a single mineral, such as quartz (Anderson and Burnham, 1965;Manning, 1994;Keppler, 2000, 2002;Wang et al, 2004), albite (Anderson and Burnham, 1983;Stalder et al, 2000), zircon (Ayers and Watson, 1991;Newton et al, 2005Newton et al, , 2010, or Ca and Ca-Al silicates (Fockenberg et al, 2006(Fockenberg et al, , 2008Manning, 2006, 2007). Notable exceptions targeted mantle bulk compositions or are reconnaissance in nature (Ryabchikov and Boettcher, 1980;Ryabchikov et al, 1982;Ryabchikov and MacKenzie, 1985;Schneider and Eggler, 1986;Zhang and Frantz, 2000;Newton and Manning, 2002). While such studies provide essential information, they offer limited insight into key solution properties like ionic strength, pH, and total dissolved solids in H 2 O multiply saturated with crustal silicate minerals.…”