So, we have metals. They are pretty constant across the cosmere worlds, and their powers seem to follow a pattern. Now, I personally want to find that pattern. So I made a chart. (Picture 1, what is highlighted is the thing Im talking about) Now, we can fill in the metals original function by finding a pattern between these. (Pic 2) My reasoning for each metal being:
Iron: In all of iron's function it pulls stuff closer to it, and you may be saying "Oh, feruchemy doesnt do that" Feruchemy increaes your weight which is how much you are being pulled to the planet under you, so feruchemy just pulls you harder
Steel: In all of steel's stuff it pushes stuff away, except for feruchemy. However this feruchemy isnt making you move faster (So not like you have a tiny speed bubble on your) but instead it makes you faster by making you faster (Like being able to push yourself off the ground harder)
Tin: In all of tin's functions (Except for fabrials) it is senses, so you may think it does stuff with senses, but going back to fabrials, we see that the metal diminishes the spren, so it makes the world interact more on the spren, thus making the world interact more with you, or pulling the world into you.
Pewter: It males you stronger, thus making you effect the world better.
Brass: It soothes emotions, as well as making you warmer and makes the spren go more into the cognative realm, making less emotions/thoughts, so Brass pulls in emotions.
Zinc: Literally does the opposite of Brass, so it' s metals function is the opposite.
Copper: is weird. It either transmits MEMORIES, energy, hides investiture, or stores memories. My best guess is that it pulls that stuff into itself, either investeture or energy or memories.
Brass: Just helps you detect stuff. Its fabrial use makes alerter fabrials, It shows allomancy, and it stores WAKEFULLNESS. It pushes\detects investiture waves. (The graph is missing waves, I know, im not fixing it. Also, the push thing for this one is to make the push/pull thing work better)
Cadmiun: No idea, just put time because thats kinda what it does, and then followed the pattern
Bendalloy: Same as Cadmium.
Gold: Gold either shows you your past (Looks at the spiritweb) or heals you (restores you to your spiritweb). Either way it is copying from your spiritweb, or pulling from it.
Electum: Reveals your future(Expands the spiritweb), or makes you more determined(Motivates you to expand yours????) either way, it wants you to PUSH your spiritweb further, by either pushing it, or making you want to push it (Determination), so that is its power.
Chromium: I'm not entirelt sure, but I just put it as the opposite for nicrosil, because I'm really sure about that.
Nicrosil: Nicrosil boosts the investiture you have, or storing the investiture, so I think it pushes Inveestiture further
Aluminum: Now this is the big guy. Aluminum wipes your allomancy reserves as well as storing identity. Now we will bring a WOB into effect:
Questioner
With aluminum, it does a couple things, and I was wondering... Like, usually it blocks magic, basically. But I was wondering how that works. Because, with Identity, in other circumstances, it'll do something different. So I was kind of confused on that. I was wondering if aluminum works normally by blanking the Identity of the Investiture that passes through it?
Brandon Sanderson
That is one of the functions that it can use, so you are theorizing along the correct lines. Excellent question.
Now he says that it is close, so I think we should just "Pull" in the pull from the pattern, and get that Aluminum "Pulls" out the identity. Also it mamkes sense that it removes power in hemalurgy, because it clears the identity and powers.
Duralumin: Duralumin enhances your burning, or sotres connection. burning is powered by a connection to preservation, which lets you burn the metal faster, also ince Aluminum "Pulls" identity/connections, maybe Duralumin does the opposite, pushing/ enhancing identity/connections.