Talk:Henry Roscoe (chemist)

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Mystery edit

Latest comment: 14 years ago2 comments2 people in discussion

He showed that "the substance which had previously passed for the metal was contaminated with oxygen". What substance was it, then? Stefan Ivanovich (talk) 20:10, 25 June 2009 (UTC)Reply

See http://www.minersoc.org/pages/Archive-MM/Volume_31/31-235-289.pdf Mottramite is the mineral: with a vanadium compound as a component.--Felix Folio Secundus (talk) 22:55, 25 September 2009 (UTC)Reply

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