 | Smith, M.P., Moore, K., Kavecsánszki, D., Finch, A.A., Kynicky, J., Wall, F. (2016) From mantle to critical zone: A review of large and giant sized deposits of the rare earth elements. Geoscience Frontiers, 7 (3) 315-334 doi:10.1016/j.gsf.2015.12.006 | Journal (article/letter/editorial) | | importance of a deposit may be related to the grade for individual, or a limited group of, the elements...total REE resource, only one currently known deposit (Bayan Obo) would class as giant (>1.7×107 tonnes contained...unclassified resource estimates from the Olympic Dam IOCG deposit, all of these deposits M AN U are related to...of some of the largest deposits AC C (e.g. Bayan Obo). Hydrothermal activity involving fluids from...Rare earth elements; Carbonatite; Syenite; Giant deposit; Grade 1. Introduction The rare earth elements |  | Benaouda, Rachid, Kraemer, Dennis, Sitnikova, Maria, Goldmann, Simon, Schwarz-Schampera, Ulrich, Errami, Abdellatif, Mouttaqi, Abdellah, Bau, Michael (2020) Discovery of high-grade REE-Nb-Fe mineralization associated with calciocarbonatite in south Morocco. Ore Geology Reviews, 124. 103631pp. doi:10.1016/j.oregeorev.2020.103631 | Journal (article/letter/editorial) | | zones, which contain bastnaesite and 20 pyrochlore-group minerals as the main REE and Nb ore minerals...the associated Fe-oxide 23 mineralization, pyrochlore and monazite-(Ce) are the main ore minerals occurring...Bastnaesite commonly forms prismatic aggregates whereas pyrochlore and 28 ceriopyrochlore usually display subhedral...REE-Nb-Fe, IOA, hydrothermal, epigenetic 41 deposit 3 42 1 Introduction 43 Critical metals such...Woolley and Kjarsgaard, 2008a, 2008b). Moreover, China and Brazil dominate the 50 market for REE and |  | Macdonald, R., Bagiński, B., Kartashov, P., Zozulya, D., Dzierżanowski, P. (2012) Chevkinite-group minerals from Russia and Mongolia: new compositional data from metasomatites and ore deposits. Mineralogical Magazine, 76 (3) 535-549 doi:10.1180/minmag.2012.076.3.06 | Journal (article/letter/editorial) | | 76(3), pp. 535–549 Chevkinite-group minerals from Russia and Mongolia: new compositional data from metasomatites...Electron-microprobe analyses of Russian and Mongolian chevkinite-group minerals from little-known host lithologies, including...metasomatic rocks, quartzolites and an apatite deposit, are presented. The mineral species analysed include...Compositional variation in the Sr-rich members of the group is broadly represented by the exchange vector (Fe...hydrothermal alteration. K EY WORDS : chevkinite group, electron microprobe, intra-crystalline variations |  | 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) | | apatite and late Ca-Fe-Mn carbonates ± monazite ± pyrochlore overprint and crosscut granite and comendite...mineral and occurs with minor ferrocolumbite, pyrochlore, strontiopyrochlore, and apatite associated with...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 |  | Nedosekova, Irina, Vladykin, Nikolay, Udoratina, Oksana, Belyatsky, Boris (2021) Ore and Geochemical Specialization and Substance Sources of the Ural and Timan Carbonatite Complexes (Russia): Insights from Trace Element, Rb–Sr, and Sm–Nd Isotope Data. Minerals, 11 (7) 711 doi:10.3390/min11070711 | Journal (article/letter/editorial) | | signatures and ore specialization: Nb-deposits of pyrochlore carbonatites are associated with the IVC, while...moderately depleted mantle source for rocks and pyrochlore mineralization. The Buldym complex has a higher...carbonatites; Sr–Nd isotopes; Nb–REE deposits; pyrochlore; bastnäsite; Urals; Timan Received: 28 May 2021...with carbonatites: Mountain Pass (USA) and Bayun-Obo (China) provide more than half of the world production...production of rare earth elements of the cerium group. Carbonatites are usually cogenetic with alkaline rocks |  | | Journal (article/letter/editorial) | | industries. Currently, mining and processing of REE is strongly concentrated in China. A substantial growth...(high-temperature) and secondary (low-temperature) deposit types. The most important primary deposits with...from China, with 40%–50% of this production contributed by the giant Fe-REE-Nb deposit at Bayan Obo [3...tons of Nb2 O5 and 470 million tons of iron. The deposit also contains an estimated 130 million tons of...in the Mesoproterozoic Gardar Province of south-west Greenland [8], and the Protogine Zone, a major, |  | | Journal (article/letter/editorial) | | in steel making and industrial modernisation in China, Russia and India as the cause of price spikes in...considered for potential coproduction of Ta and Nb. Pyrochlore (Nb–Ta), columbitetantalite (Nb–Ta), wodginite...% from tin slag refining and 10 % from secondary mine concentrates. Due to rapid industrialisation and...use of Nb in steel making in countries such as China and India, demand for Nb is rising. Weathered crusts...hard rock carbonatite deposit in Canada account for about 92 and 7 % of Nb world mine production, respectively |  | Chakhmouradian, Anton R., Reguir, Ekaterina P., Kressall, Ryan D., Crozier, Jeremy, Pisiak, Laura K., Sidhu, Ravinder, Yang, Panseok (2015) Carbonatite-hosted niobium deposit at Aley, northern British Columbia (Canada): Mineralogy, geochemistry and petrogenesis. Ore Geology Reviews, 64. 642-666 doi:10.1016/j.oregeorev.2014.04.020 | Journal (article/letter/editorial) | | com/locate/oregeorev Carbonatite-hosted niobium deposit at Aley, northern British Columbia (Canada): Mineralogy...Aley niobium deposit Carbonatite Metasomatic rocks Pyrochlore-group minerals Columbite-group minerals Fersmite...Stable-isotope composition a b s t r a c t The Aley Nb deposit in northern British Columbia, Canada, is hosted...Devonian. Primary Nb mineralization consists of pyrochlore (commonly comprising a U–Ta-rich and F-poor core)...discrete crystals and replacement products after the pyrochlore. These phases and associated heavy minerals (apatite |  | Walter, B.F., Parsapoor, A., Braunger, S., Marks, M.A.W., Wenzel, T., Martin, M., Markl, G. (2018) Pyrochlore as a monitor for magmatic and hydrothermal processes in carbonatites from the Kaiserstuhl volcanic complex (SW Germany) Chemical Geology, 498. 1-16 doi:10.1016/j.chemgeo.2018.08.008 | Journal (article/letter/editorial) | | Accepted Manuscript Pyrochlore as a monitor for magmatic and hydrothermal processes in carbonatites from...A.W. Marks, T. Wenzel, M. Martin, G. Markl , Pyrochlore as a monitor for magmatic and hydrothermal processes...the journal pertain. ACCEPTED MANUSCRIPT 1 Pyrochlore as a monitor for magmatic and hydrothermal processes...walter@uni-tuebingen.de ACCEPTED MANUSCRIPT 2 1. Abstract Pyrochlore from the Kaiserstuhl volcanic complex (SW Germany)...(Henkenberg, Kirchberg). Oscillatory-zoned F-rich pyrochlore with up to 69 wt.% Nb2O5 is common in all coarse-grained |  | Amores-Casals, , Melgarejo, , Bambi, , Gonçalves, , Morais, , Manuel, , Neto, , Costanzo, , Molist, (2019) Lamprophyre-Carbonatite Magma Mingling and Subsolidus Processes as Key Controls on Critical Element Concentration in Carbonatites—The Bonga Complex (Angola) Minerals, 9 (10) 601 doi:10.3390/min9100601 | Journal (article/letter/editorial) | | reconstruct the dynamics of the complex, the pyrochlore composition and distribution have been used as...evolution of the complex. An early Na-, F-rich pyrochlore is disseminated throughout the carbonatite plug...dykes. Crystal accumulation led to enrichment of pyrochlore crystals in the plug margins, phoscoritic units...the crystallization of magmatic Na-, F- poor pyrochlore but progressively enriched in LILE and HFSE....processes and the formation of carbonatite breccia. Pyrochlore is the main Nb carrier in mingled carbonatites |  | | Report (issue) | | gov/images/periodictable.pdf. Cover. Left, centimeter-size pyrochlore crystals from Uganda. Photograph by Gunnar Ries/CC-BY-SA-3..............................................M6 Deposit Types........................................................................................M24 Mine Waste Characteristics ........................................................................M27 Mine Closure ............................................M4 M4. Photographs showing centimeter-size pyrochlore crystals from Uganda, and a tantalite crystal |  | | Book | | nearly all metals and the inevitable closing of many mining operations, it is a matter of the industry's survival...decision, not only is a handy volume affered to the mining and processing community but also duplication of...Ercit (with 21 Figures) . . . . . . 3 27 Pyrochlore Group Minerals from the Qaqarssuk Carbonatite Complex...The Bastnaesite-Fluorite-Barite Deposit of the Kizilcaören District, Eskisehir, Turkey. G. Morteani and...Granite-Hosted Tantalum Deposits: An Approach via District Analysis. P. 1. Pollard (with 1 Figure) . . . |  | | Journal (article/letter/editorial) | | less than 100000 tons of Nb2О5 (including past mining, if it took place). The number of such objects...authors (Tkachev and Rundquist, 2016a, 2016b). DEPOSIT TYPES All niobium resources corresponding to the...nepheline–syenite (Zozulya et al., 2007). In the former, pyrochlore is only of mineralogical interest, GEOLOGY OF...Tanbreez; (11) Motzfeldt; (12) Seis Lagos; (13) Bayan Obo; (14) Nemegosenda; (15) Luesh; (16) Bingo; (17)...31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 Deposit Nechalacho Pitinga Brockman Katugin Mount Weld |  | Vrublevskii, V.V., Bukharova, O.V., Nebera, T.S., Sveshnikova, V.L. (2019) Composition and origin of rare-metal (Nb–Ta, REE) and sulfide mineralization in magnesiocarbonatites from the Yenisei Ridge, Central Siberia. Ore Geology Reviews, 111. 102949 doi:10.1016/j.oregeorev.2019.102949 | Journal (article/letter/editorial) | | ancylite), as well as secondary phases (Sr-Ba pyrochlore, ferrocolumbite, fersmite, and Fe and Sr carbonates)...Patti in Pakistan; Qinling orogen carbonatites in China (Puustinen, 1971; Glevasskii and Krivdik, 1981;...remarkable in bearing high-temperature apatite-group phosphates and rare-metal (Nb–Ta, REE) and sulfide... 3–5 vol. % magnetite, and minor pyrrhotite, pyrochlore, and other accessories (Lapin et al., 1987; Vrublevskii...Sm–Nd isochron ages of amphibole, apatite, and pyrochlore likewise fall within the Late Precambrian: ~672 |  | | Book (edition) | | Minerals that are listed as belonging to the same group are similarly closely comparable in composition...Cand CSPG Pennskiye gubemskiye wdomo.sti (Perm district ga=elle) Pl,ilosopl,ical Maga=ine Periodico de...Abernathyitc, K[(UO 2 )(AsO,)](HP) 3, tet., Fumerole No. 2 mine, Temple Mountain. on the southeast flank of the...104(3). 326-328 □ Achavnlitc, FcSe, hex .. Cacheuta Mine. Ccrro de Cacheuta. Sierra de Cacheuta. Mcndoza...Tikhonenkovite. compare Artrocitc, Ivigtul cryolitc deposit. Ivittuut municipality. southwest Wi tgreenl Greenland |  | Dunn, Pete J., Cabri, Louis J., Chao, George Y., Fleischer, Michael, Francis, Carl A., Grice, Joel D., Jambor, John L., Pabst, Adolf (1984) NEW MINERAL NAMES. American Mineralogist, 69 (3-4) 406-412 | Journal (article/letter/editorial) | | French). The name is for the locality, the Carboire deposit on the Marimana Dome. J.D.G. Chessexite* H. Sarp...name is for the locdity, the Argut PIane. Maine mine, near Autun, France. Optically biaxial, positive...with X-ray studies show it to be triclinic, space group CT (for English abstract). comparisonwith monoclinic...niobium-rare earth deposit in a proterozoic riebeckitized dolomite at Bayan Obo, Inner Mongolia, China. The associatedminerals...(1983)The discovery of iron barringerite, (Fe2P) in China. Scientia Geol. Sinica, 19-202. (in Chinese). Analysis |  | Monchoux, P., Fontan, F., De Parseval, P., Martin, R. F., Wang, R. C. (2006) IGNEOUS ALBITITE DIKES IN OROGENIC LHERZOLITES, WESTERN PYRENEES, FRANCE: A POSSIBLE SOURCE FOR CORUNDUM AND ALKALI FELDSPAR XENOCRYSTS IN BASALTIC TERRANES. I. MINERALOGICAL ASSOCIATIONS. The Canadian Mineralogist, 44 (4) 817-842 doi:10.2113/gscanmin.44.4.817 | Journal (article/letter/editorial) | | University, Nanjing, 210093, People’s Republic of China, and Laboratoire de Mécanisme de Transfert en Géologie...chlorite, epidote, zircon, titanite, thorite, pyrochlore (s.l.), aeschynite-(Ce), ferrocolumbite, rutile...calciosamarskite. Likewise, the composition of pyrochlore (s.l.) shows a strong variation, from weakly...light-REE-enriched betafite and pyrochlore (Urdach) to Pb-, U-rich pyrochlore (s.s.) (Espéchère). The textures...corundum, zircon, thorite, strontian epidote, pyrochlore-group minerals, samarskite, ishikawaite, Urdach |  | | Journal (article/letter/editorial) | | dolomite, fluorapatite, phlogopite, amphibole, and pyrochlore. The carbonatite is separated from amphibole-fenite...magnesioarfvedsonite (overgrowth, crystal rim). Uranium-rich pyrochlore is metamict and ranges from calciopyrochlore...fenite. In breccia cement at nearby Fortune Lake, pyrochlore is associated with abundant fluorapatite but...petrogenesis at Fen, metamorphism has obscured pyrochlore zonation and enhanced amphibole growth at Meech...metamorphism, Meech Lake, Fen. INTRODUCTION Pyrochlore discovery in Gatineau Park In 1954, prospector |  | | Journal (article/letter/editorial) | | oxides (minerals of the aeschynite, euxenite, pyrochlore and samarskite groups), compositional alteration...Biraya (Mills et al., 2012) in Russia; and Bayan Obo, China (Weilang, 1991). Formanite-(Y), the Ta-analogue...Russia (Voloshin et al., 2003); East Pilbara Shire, West Australia (Wylie, 1954); and the Lac-du-Bonnet area...Peninsula, Russia (Voloshin, Pakhomovskii, 1986); West Australia (Calderwood et al., 2007); Madagascar...disseminated REE-Nb-U mineralization, such as the Salem deposit in Tamil Nadu, India (Nishimori et al., 1977; Roy |  | Starikova, Anastasia E., Bazarova, Ekaterina P., Savel’eva, Valentina B., Sklyarov, Eugene V., Khromova, Elena A., Kanakin, Sergei V. (2019) Pyrochlore-Group Minerals in the Granite-Hosted Katugin Rare-Metal Deposit, Transbaikalia, Russia. Minerals, 9 (8) 490 doi:10.3390/min9080490 | Journal (article/letter/editorial) | | minerals Article Pyrochlore-Group Minerals in the Granite-Hosted Katugin Rare-Metal Deposit, Transbaikalia...August 2019 Abstract: Pyrochlore group minerals are the main raw phases in granitic...granitic rocks of the Katugin complex-ore deposit that stores Nb, Ta, Y, REE, U, Th, Zr, and cryolite. There...%), ThO2 (to 1.8 wt.%), and PbO (to 1.4 wt.%). Pyrochlore of this type is very rare in nature and is limited...columbite. Secondary-I pyrochlore follows cracks or replaces primary pyrochlore in grain rims and is compositionally |  | | Book (edition) | | MINE andtheir LOCALITIES JAN H. BERNARD AND JAROSLAV HYRSL INERALS DESCRIBED SINCE 2004 MINERALS...35 111111, Qinglong dist., China Fluomatromicrolite, x 25111111, Naipa mine, Mozambique Daliranite, 5111111...Zarshouran Au-As deposit, Takab region, Iran Grandviewite, 5 111111, Capillitas deposit, Argentina Calciopetersite...Domafov, Czech Rep. Juangodoyite, 60111111, Santa Rosa mine, Chile Back cover photo: Ho/fertile on hematite...piment pseudomo,phs after realga,; 75 mm, Palomo mine, Pen, Page 3: Stepite on arsenic, 45 111111,Jachymov |  | Andersen, Allen K., Clark, James G., Larson, Peter B., Donovan, John J. (2017) REE fractionation, mineral speciation, and supergene enrichment of the Bear Lodge carbonatites, Wyoming, USA. Ore Geology Reviews, 89. 780-807 doi:10.1016/j.oregeorev.2017.06.025 | Journal (article/letter/editorial) | | abundance of secondary REE phosphates (rhabdophane group, monazite, and fluorapatite), while HREE-enrichment...complexes of the Kola Peninsula, the Maoniuping REE deposit, China, and lateritically weathered carbonatite at...Ondurakorume complexes, Namibia; Juquiá, Brazil; Bayan Obo, China; Karonge, Burundi; and the Barra do Itapirapuã...Northwest Territories of Canada and the Strange Lake deposit in Québec-Labrador, Canada, appear to have the...increase in alkalinity is reported from east to west across the belt, and K-Ar and 40Ar/39Ar age determinations |  | Andersen, Allen K., Clark, James G., Larson, Peter B., Neill, Owen K. (2016) Mineral chemistry and petrogenesis of a HFSE(+HREE) occurrence, peripheral to carbonatites of the Bear Lodge alkaline complex, Wyoming. American Mineralogist, 101 (7) 1604-1623 doi:10.2138/am-2016-5532 | Journal (article/letter/editorial) | | Ondurakorume complexes, Namibia; Juquiá, Brazil; Bayan Obo, China; Karonge, Burundi; and the Barra do Itapirapuã...Th)(PO4)·H2O], a member 1605 of the rhabdophane group. We present some of the most complete electron microprobe...phosphates (rhabdophane group and xenotime) and HFSE minerals (rutile and pyrochlore) (Andersen et al. 2013b...carbonatites. However, rutile/pseudorutile and pyrochlore group minerals are the predominant Ti- and Nb-bearing...oxidized carbonatite along with other rhabdophane group minerals, by the authors of this study. Xenotime-(Y) |  | | Journal (article/letter/editorial) | | Society’s Mineral Deposits Studies Group and the Applied Mineralogy Group of the Mineralogical Society was...the petrogenesis of the sulphidehosted platinum-group-element (PGE) deposits of the Stillwater Complex...and isotopic study of sulphides from conglomerate group ore, Navan, Ireland G. J. Barker1, J. F. Menuge1...UK The world-class carbonate-hosted Navan Zn–Pb deposit, Ireland, is Europe’s leading zinc producer. The...iron sulphide-rich ore lens, termed Conglomerate Group Ore (CGO), is hosted by a sequence of fault talus |  | | Journal (article/letter/editorial) | | little Zn, Fe, and Mn. Named for the Plan d'Argut deposit. [A.M. 69, 406.] Arhbarite. K. Schmetzer, G. Tremmel...blue spherulitic aggregates at the Arhbar mine, Bou-Azzer district, Morocco. Monoclinic. Optically biaxial...given. Composition Cu2AsO4(OH )- 6H20. Named for the mine. [A.M. 68, 1038.] Arsendeseloizite. P. Keller and...bluish-green crusts and spherules from the Neubulach mining district, Schwarzwald, Germany, are rhombohedral, a...(OH)6], the As analogue of crandallite (alunitc group). Isotropic or weakly birefringent, n 1.625. [A |
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