The sphalerite construction is favored at 298k by 13kJ/mol, but at 1296K the transition to wurtzite happens.3 The variances among minerals can be used to estimate the temperature of equilibration. The δ13C and δ34S of coexisting carbonate minerals and sulfides can be used to ascertain the pH and oxygen fugacity https://hannesk134fat9.ssnblog.com/profile