DATABASE C:\Program Files\USGS\Phreeqc Interactive 2.6\wateq4f.dat
# R.18. Exercise
SOLUTION 1
END
USE solution 1
REACTION 1
	Pyrite	1 
	10 mmol
EQUILIBRIUM_PHASES 1
	O2(g)	-0.7
END
USE solution 1
REACTION 1
	Mackinawite	1 
	10 mmol
EQUILIBRIUM_PHASES 1
	O2(g)	-0.7
END
USE solution 1
REACTION 1
	Sphalerite	1 
	10 mmol
EQUILIBRIUM_PHASES 1
	O2(g)	-0.7
END