DATABASE C:\Program Files\USGS\Phreeqc Interactive 2.7\phreeqc.dat
# R.22.	Exercise
SOLUTION 1
END
USE solution 1
EQUILIBRIUM_PHASES 1
    Gibbsite  0 KAlSi3O8  10
END
USE solution 1
EQUILIBRIUM_PHASES 1
    Kaolinite 0 KAlSi3O8  10
END
USE solution 1
EQUILIBRIUM_PHASES 1
    K-mica    0 KAlSi3O8  10
END
USE solution 1
EQUILIBRIUM_PHASES 1
    K-feldspar 0 KAlSi3O8  10
END