Hi Brian
Let me clarify the problem. Enargite is NOT included in the original databases but I have calculated the constants from other sources. However, log K values are really high and in the GWB databases we cannot lower logK by division since the program constrains that the minerals always have a coefficient in the reaction of 1. Also, it looks like that in the GWB databases unknown log K values are set to 500; I wonder if there is any instruction that simply skips minerals having high log K - at least in version 8.0. In fact, when having a look to the log of the diagrams in Act2, enargite simply does not exist as loaded mineral despite it is in the database as has been checked in Config/Show.
Any idea?
Thanks
Fernando