[quote=@Isotope]
I don't like it, makes it impossible for nations without dwarves or racist attitudes towards them to get tungsten/adamantite.

Tungsten is a material that is only going to get more important as time goes on, and already is important by ww2 standards.
[/quote]Acquiring tungsten aka adamantine is possible for anyone.
Adamantium would be a certain fantastical adamantine alloy which somebody may use for ludicrously expensive superheavy tanks or something more creative.

Also I am pretty sure that practically every nation in Verusa has a population of dwarves in it.
And our prime suspect for racism is actually supportive of dwarves.