Transcript:
Penpen: That is liquid orichalcum. It has been infused with a single element of magic. The cases keep it in liquid state to easily craft with.
Kate: So, is it like a potion set, or something where I mix them up?
Penpen: That would be, unwise. Some of those elements don't mix. They solidify, you'll need a mold.
Kate: You aren't going to help me with this?
Penpen: Oh I'm sorry, does giving you everything you need not count as helpful? Do you know the value of that stuff?
Kate: You just told me this stuff can be dangerous though! Then you want to just leave me to it? What if it blows up the apartment?
Penpen: Don't do that.

Hey, I was more or less right. I’m liking this idea though and looking forward to seeing how the mechanics would work out.
Could it be similar to Cain tuning magic engines to the elements for his robots?