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)
Calcium carbonate - an IP recently made major changes to a set of data in a table - see this diff. In an attempt to identify whether this was justified or blatant vandalism I looked for refs but found that with the exception of one section - on the uses of calcium carbonate - the article is virtually devoid of citations. Please can someone with access to suitable sources add sufficient citations to make the article look more like an encylopedic entry and less like someone's WP:OR? Thanks -- Timberframe (talk) 19:38, 18 September 2009 (UTC)[reply]
