Ahh...derp of the day.
Setup a smeltery with some basic automation (a project red timer and a hopper, portable tank full of lava), so all I have to do is drop in the good stuff and walk away. I come back from a mining trip with a good haul, including the first gold ore I've been able to find and drop it all in and go running back for more goodies.
When I come back, I find no gold...only electrum and agmallium (or whatever). What an idiot...I completely forgot about extraTIC and the way gold alloys with everything to make completely useless metals.
I've always been very careful with that and only drop in 1 type or ore each time into the smeltery... would be nice though if there was a way to control this