Hi all, I'm also a long time lurker, I thought I'd add my first post here since I'm really into all the Allomancy metal theories.
I'm in agreement with Chaos2651 about which side of the chart the "Larasium" and "Atium" symbols should be on (they should be switched), which would mean that the text in the God Metal box would also need switching around.
Atium and Larasium both say that in alloy form, they produce "various expanded effects." Does this depend on the metal it is alloyed with? The only alloy we've seen, that I can tell is Malatium, and that was Atium, alloyed with gold, correct? And the effect it produced was very similar to gold. So, what effects would it produce if it were alloyed with, say... Bronze? Also, since the effects are mental and temporal, will it only alloy with the mental/temporal metals?
I've seen that someone has updated wikipedia on this. I'm a little unsure about this myself since it has said that when you combine "Larasium" with one of the other metals you can create a Misting of the alloy you mixed it with, but it doesn't say that you can only mix it with Physical and Enhancement metals, otherwise you wouldn't be able to make Rioters, Smokers, etc. We already know that there are "Atium" Mistings (Larasium mixed with Atium I'd imagine).
It would kind of make sense that you would be able to mix "Atium" with the other 16 metals as you can with "Larasium".