Talk:Rare-earth mineral

message: This isn't really a good coathanger to place on a mineral suite; rare earths are present in minerals as cations which substitute for other elements when in high enough concentrations within rocks; for example, monazite is a phosphate mineral which often contains rare earths, etc. 
This may do better as a category into which we can place minerals which contain rare-earths; this should probably be discussed. But as it stands at the moment there is no 'rare earth minerals' defined within geology or mineralogy that I know of, merely minerals which contain rare earth elements.Rolinator
:But, I've got a book on them - Rare Earth Minerals: Chemistry, origin and ore deposites, The Mineralogy Society Series #7, c. 1996, 372 pp.  - maybe one of these days I'll dig into it and expand this stub. Should be able to get a decent article out of it. Some day ... :-) Vsmith 02:34, 31 October 2006 (UTC)
thread_title: [Untitled]

message: 1. The term "rare" earth was coined when gay meant happy.  2. Rare Earths are not rare: http://en.wikipedia.org/wiki/Abundance_of_the_chemical_elements#Rare-earth_element_abundances showing Cerium is more common than Copper or Nickel. The least common Lutetium is as abundant as Antimony. 3. Monazite deposits are found in many countries (http://www.mindat.org/min-2750.html , http://en.wikipedia.org/wiki/Monazite) and was mined in 11 US States with significant deposits in several more. Large scale mining operations in South Africa (since the 50's), India (which mines Mozanite for the Thorium), Canada (mining Rare Earth minerals for Uranium), Brazil, et al. 4. Although China's largest deposit is rated at 35 million tons, the older South African deposit was still rated as 15 million tons (see mining weekly story, one mine had been closed down and reopening http://www.miningweekly.com/article/investors-take-a-closer-at-rare-earth-elements-as-technology-and-green-revolutions-pick-up-pace-2009-09-18 ) with new deposits in SA and Australia potentially larger than the Chinese deposits. 5. United States mines (for Mozanite and other Rare Earth minerals) were in operation providing Misch Metal (a mixture of REs mostly Cerium) as an additive for the US Steel Industry. (I'm a Chemist/Metallurgist.)  6. China ONLY leads in the production of separated rare earth metals. The separation of rare earth metals is chemically difficult process and China does it cheaply because pollution with toxic chemicals is not a problem for the People's Republic.
http://www.miningweekly.com/article/investors-take-a-closer-at-rare-earth-elements-as-technology-and-green-revolutions-pick-up-pace-2009-09-18
http://en.wikipedia.org/wiki/Monazite
http://www.mindat.org/min-2750.html
Shjacks45 (talk) 12:34, 2 November 2010 (UTC)
thread_title:  Poor science. Rare Earths are not  rare. 

message: I wanted to bring up the existence of
http://en.wikipedia.org/wiki/Rare_earth_element
which discusses the topic of Rare Earth Minerals in detail
--Johnev (talk) 09:40, 9 November 2010 (UTC)
thread_title:  Possible Topic Duplication 

message: From a stock market release, annual report: "key RE mineral steenstrupine. Steenstrupine contains 25-30% 
REO, is enriched across the RE spectrum, and is only known to occur in large quantities in the northern Ilimaussaq Complex that sits within the Company’s exploration license in Greenland. It represents a very important new source of  REE’s, and is key to Kvanefjeld’s strategic value"
Greenland Minerals and Energy Limited, Annual Report to shareholders 29/03/2018 David Woodward ☮ ♡♢☞☽ 11:38, 18 April 2018 (UTC)
thread_title:  Steenstrupine  

message: — Assignment last updated by JesseChadder (talk) 00:11, 1 March 2024 (UTC)
thread_title: Wiki Education assignment: ERTH 4303 Resources of the Earth