 | | Journal (article/letter/editorial) | | REVIEW Assessing rare earth element mineral deposit types and links to environmental impacts Z. H. Weng*1...modest scale of the global REE mining sector means that the REE mineral deposit type knowledge base is small...classification scheme for differing REE mineral deposit types, outline the geological processes that cause...on the environmental impact associated with REE mining, extraction and processing. Although current global...mineralogy is linked to environmental risks during mining and refining, especially aspects such as radioactive |  | Guowu, Li, Guangming, Yang, Fude, Lu, Ming, Xiong, Xiangkun, Ge, Baoming, Pan, de Fourestier, Jeffrey (2016) Fluorcalciopyrochlore, A New Mineral Species From Bayan Obo, Inner Mongolia, P.R. China. The Canadian Mineralogist, 54 (5) 1285-1291 doi:10.3749/canmin.1500042 | Journal (article/letter/editorial) | | SPECIES FROM BAYAN OBO, INNER MONGOLIA, P.R. CHINA LI GUOWU§ Crystal Structure Laboratory, China University... P.R. China YANG GUANGMING China University of Geosciences (Wuhan), 430074 Wuhan, P.R. China LU FUDE...050031 Shijiazhuang, P.R. China XIONG MING Crystal Structure Laboratory, China University of Geosciences...P.R. China GE XIANGKUN Beijing Research Institute of Uranium Geology, 10029 Beijing, P.R. China PAN...PAN BAOMING China University of Geosciences (Wuhan), 430074 Wuhan, P.R. China JEFFREY DE FOURESTIER |  | | Journal (article/letter/editorial) | | the minerals euxenite [(Y,Ca,Ce,U,Th) (Ti,Nb,Ta)2O6] and gadolinite [(Ce,La,Nd,Y)2FeBe2Si2O10]. Scandium...referred to as Landsverk 3, in the Iveland-Evje district north of Kristiansand in Norway. The mineral was...ilmenorutile. For example, in the Iveland-Evje district (Norway), the scandium content of ilmenite in...et al., 2016). Zirconolite [(Ca,Ce)Zr(Ti,Fe,Nb)2O7] in this deposit contains 208 ppm Sc, on average (Kalashnikov...source of scandium in the Bayan Obo deposit, China, and the Zhovti Vody deposit in the Ukraine. In these |  | Franchini, M., Lira, R., Meinert, L., Rios, F. J., Poklepovic, M. F., Impiccini, A., Millone, H. A. (2005) Na-Fe-Ca Alteration and LREE (Th-Nb) Mineralization in Marble andGranitoids of Sierra de Sumampa, Santiago del Estero, Argentina. Economic Geology, 100 (4) 733-764 doi:10.2113/gsecongeo.100.4.733 | Journal (article/letter/editorial) | | sulfides (sphalerite, pyrite, galena). Monazite (Ce > La) is the main LREE-bearing mineral and occurs...Fe-LREE-Nb deposit Bayan Obo and other hydrothermal LREE deposits hosted in carbonatites of China. Introduction...carbonatites, particularly the large Bayan Obo deposit in China (Mariano, 1989a). Two districts with...Argentina (Fig. 1A): (1) The Rodeo de los Molles deposit, located in the Oriental Pampean Ranges of San...therein). The Rodeo de los Molles LREE and Th deposit is hosted in the Las Huertitas biotitic monzogranite |  | | Journal (article/letter/editorial) | | Majesty the Queen in Right of Canada 2014 Abstract China started to produce rare earth elements (REEs) in...government-created disparity between prices within China and the rest of the world. Industrialized countries...Because of rapid price increases of REE outside of China, we have witnessed a world-scale REE exploration...phosphate fertilizer production, U processing, mining of Ti-Zr-bearing placers, and exploitation of Olympic...deposits and one peralkaline intrusion-related deposit. The ideal REE development targets would be located |  | | | | implied by the dimorphism of chevkinite-(Ce) and perrierite-(Ce) (Sokolova et al., 2004; Belkin et al....occurring in jadeitites from Itoigawa, Niigata Prefecture, Japan, is the Sr-Zr analogue of perrierite (Miyajima...(1983) described as strontio3+ chevkinite (Sr 2 [La,Ce] 1.5 Ca 0.5 ) S4 Fe 2+ 0.5 Fe 0.5 (Ti,Zr)S2Si4O22)...for this mineral suggest that its formula is (Sr,La,Ce,Ca)4Zr(Ti,Fe)2Ti2 (Si2O7)2O8 and that strontio-chevkinite...a Sc-bearing perrierite from the Bayan Obo deposit, Inner Mongolia, which has a Sc2O3 content of 3.26 |  | Migdisov, A., Williams-Jones, A.E., Brugger, J., Caporuscio, F.A. (2016) Hydrothermal transport, deposition, and fractionation of the REE: Experimental data and thermodynamic calculations. Chemical Geology, 439. 13-42 doi:10.1016/j.chemgeo.2016.06.005 | Journal (article/letter/editorial) | | carbonate and phosphate complexes. 2.3. Stability of Ce(IV) and Eu(II) species in hydrothermal solutions...production is restricted largely to a single country (China) and their supply is therefore vulnerable, the REE...hydrothermal origin, such as the giant Bayan Obo REE deposit in China (e.g., Chao et al., 1992; Smith et...the ores of the largest of known REE deposit, Bayan Obo, China, are interpreted to have formed at temperatures...Fluid inclusion studies suggest that the Bayan Obo deposit was formed from brines containing 7 to 10 |  | | Book | | in southwestern Arizona. When used with a town or city this designation indicates the direction in which...Just, Perth, Australia; Richard Thomssen, Carson City, Nevada, USA; Peter Embrey, London, England; Jessie...Cryst. B45 (1989), 201. Aeschynite-(Ce) 2 Aeschynite-(Ce), (Ce,Ca,Fe,Th)(Ti,Nb)2(0,0H)6, Orth. Sub-metallic...Niobo-aeschynite-(Ce). Aeschynite-(Nd), (Nd, Ce, Ca)(Ti,Nb)2(0,0H)6, dark/light brown. Bayan Obo, Inner Mongolia...Mongolia, China. 0 Syst=? Adamantine H= 5-6, Djjj= 4.8, D(,=?, IVD 11. Zhang & Tao, 1982. Am. Min. 69(1984) |  | | Book | | overflow —_Lat. fluere, to flow Old English ca.450-1050 CE krup-yo, to conceal, hide Gk. kryptein, to hide...Romance languages Greek Middle English ca.! 100-1500 CE PO, Me Modern English out ee nom, to assign...the Commission of Levinson (1966), e.g., monazite-(Ce). Geometric on New variants are in some cases prefixed...et al. (1978): Am. Mineral. 63, 930. Abenakiite-(Ce) NazoREE6(SiO3)6(PO4)6(CO3)6(SO2)O, Matzko, J.J...Aeschynite-(Ce) (Ce,Ca,Fe, Th) (Ti,Nb)2(O,OH)¢, orth., Pbnm. Dimorphic relationship with lucasite-(Ce). Sjdgren |  | | Book (edition) | | 9055 89 Ac 43 r-- V 1 1 1 � 3p 111 B Ce Pr 60 Ce• 11•n 1.:".) 1:, P•J'.,V'.>:l,n •'1 1.:� ')J�;...Absitc. var. of brannerite. A .W.G. Whittle ( 1 954) Mining Rev. S. Austral. Dept. Mines no. 9 (for 1 952)...(TL) Crackers Well. South Australia. Australia. Deposit located by air-borne scintillator; hence name....alluding to its appearance. 18.2. 1 3 Aeschynite-(Ce). (Ce.Ca.Fc.Th)(Ti.Nb) i (O,OH) 6 • 1.1. BerL.elius...natural state. Forms two series. with niobo-acschynitc-(Ce) and with acschynite-(Y): dimorphouswith lucasitc-(Cc) |
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