This fix adds missing textures to my dwarven/underground city modder's resource.
Just extract the archive into the data directory.

Textures fixed:
dwarvensmithhammer.dds
dwarvensmithhammer_n.dds
rock01.dds
rock01_n.dds
sandstein01.dds
sandstein01_n.dds
steelwithornaments.dds
steelwithornaments_n.dds