DATABASE C:\Program Files\USGS\Phreeqc Interactive 2.6\phreeqc.dat
# R.6. Exercise
SOLUTION 1 Pure Water
EQUILIBRIUM_PHASES 1
	Calcite
	Dolomite
	CO2(g)	-2.0
SAVE solution 2
END
USE solution 2
REACTION
	Anhydrite	1.0
	.050 in 5 steps
EQUILIBRIUM_PHASES 1
    Anhydrite 0 0
    Calcite   0 10
    Dolomite  0 10
SAVE solution 3
END
INVERSE_MODELING
	-solutions 2 3
	-phases 
		Calcite
		Dolomite
		Anhydrite
END