Talk:Mischmetal

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Someone in the know should really give more info on the separation procedures. I hear they're long and involved, but it would be a good reference for students of chemistry.--Joel 08:06, 30 May 2005 (UTC)

I removed the phrase claiming that "geological processes" do not segregate rare earths; as a geochemist who works with REE's, I know thats not true. In fact, the differention b/w REE's by geological processes is crucial to isotope geochemistry.-- DZ Oct. 15th, 2005

Thanks! Always nice to learn something new. Would you say it's true to a small degree, or that it's entirely untrue? I understand that zirconium and hafnium are always found mixed together, as well, but I would assume that many processes would give at least an incomplete separation between the different elements. Feel free to expand the article!--Joel 21:00, 17 October 2005 (UTC)

I removed the following "Mischmetal, cerium, and the more desirable rare earth elements are related in a way that is somewhat analogous to the relationship between natural uranium, depleted uranium, and enriched uranium." as while the author undoubtedly understands the difference between elements and isotopes the average reader may well not and thus, as read, the entry would be 'wrong'. Mike