noble metal -- there have been a lot of changes made recently, principally by a single editor. On balance, I think the article is better now than before. Still, there are no web-verifiable citations that demonstrate that the scope of the list of noble-metals is correct -- just citations to books which most Wikipedians can't access. And some of the article appears to be potential original research I think the article could use the eyes of a few chemists or metallurgists on it. 20:36, 29 June 2009 (UTC)