Hello,
I am trying to figure out the stability field of a mineral (Jarosite). When I try to plot the Eh-pH diagram with the "diagram species" as Fe(+2), I am not getting Jarosite, but with the same composition with a different diagram species such as K+ or SO4(-2) I am getting Jarosite stability fields.
Why is it ? What are the implications of using different diagram species in Act2?
Thank you
P.S. Attached are the the Eh-pH diagrams