Yeah, I hate that, some weapons are actually superior in every way to others, like say steel over iron, but things like dwemer, glass, and silver should have dbenefits and drawbacks.
Like say silver should've been less durable than both iron and steel, dwemer should never be able to break, but be alot heaier, glass shuld be sharper but more fragile ETC.
It was like that in TES III, if I recall correctly. Glass weapons did more average base damage, but glass weapon health was much lower than other weapon materials; similarly, the armor provided very good protection, but the armor health was lower than, say, a heavy armor equivalent. Also, the Dwemer weapons and armor had
a lot of health, and silver weapons were less durable. I think the Duke's Silver Cuirass had more durability than the usual legion cuirass, though.
But, back to Dwemer metal materials...
I'm not sure; the only identifiable mineable ores that I'm aware of are glass, ebony, iron, gold, adamentium, and silver; I suppose Stalhrim, too. I think "tin" was an alchemical ingredient in a previous Elder Scrolls game (from the Tamrielic Ingredients mod). There must be copper, though, for the copper jewelry, and probably there are deposits of jadestone for the jade jewelry. I'm not sure what alloy the orcish armor is comprised of.
Whatever Dwemer metal is, I think it is probably an alloy. Something that resists corrosion, is durable (I believe a TES III book mentioned that Dwemer armor is very good at absorbing blows and distributing the damage?) , and very heavy.