There's gromril (and mithril, adamant, and laithero [was that ever actually canon?]); and oathgold, bitterstone, and brightstone from WAR (do they appear in anything else?). Chaos Dwarfs have blackshard, but given it uses souls and daemons, I think we can safely assume Dwarfs have never touched (or, honestly, heard of) the stuff.
Are there other metals/materials known only to/only used by the Dwarfs?
Edited by Kuddyhy Kyansson, 22 July 2015 - 12:58 AM.