 | Chakhmouradian, A. R., Cooper, M. A., Medici, L., Hawthorne, F. C., Adar, F. (2008) FLUORINE-RICH HIBSCHITE FROM SILICOCARBONATITE, AFRIKANDA COMPLEX, RUSSIA: CRYSTAL CHEMISTRY AND CONDITIONS OF CRYSTALLIZATION. The Canadian Mineralogist, 46 (4) 1033-1042 doi:10.3749/canmin.46.4.1033 | Journal (article/letter/editorial) | | FLUORINE-RICH HIBSCHITE FROM SILICOCARBONATITE, AFRIKANDA COMPLEX, RUSSIA: CRYSTAL CHEMISTRY AND CONDITIONS OF CRYSTALLIZATION...silicocarbonatite from the Afrikanda complex, in the Kola Peninsula, northwestern Russia, contains abundant crystals...described to date. The compositional variation of the Afrikanda hibschite can be described by the formula Grs...structure of F-rich hibschite was refined in space group Ia3d to R1 = 2.8%. In agreement with the chemical...and corner-to-corner distances measured for the Afrikanda hibschite relative to garnets with a similar Si |  | Zaitsev, Anatoly N., Terry Williams, C., Jeffries, Teresa E., Strekopytov, Stanislav, Moutte, Jacques, Ivashchenkova, Olga V., Spratt, John, Petrov, Sergey V., Wall, Frances, Seltmann, Reimar, Borozdin, Alexey P. (2014) Rare earth elements in phoscorites and carbonatites of the Devonian Kola Alkaline Province, Russia: Examples from Kovdor, Khibina, Vuoriyarvi and Turiy Mys complexes. Ore Geology Reviews, 61. 204-225 doi:10.1016/j.oregeorev.2014.02.002 | Journal (article/letter/editorial) | | carbonatites of the Devonian Kola Alkaline Province, Russia: Examples from Kovdor, Khibina, Vuoriyarvi and...University, University Emb. 7/9, St. Petersburg, 199034, Russia Department of Earth Sciences, Natural History Museum...University, University Emb. 7/9, St. Petersburg, 199034, Russia e Camborne School of Mines, University of Exeter...dolomite (up to 77 ppm), as well as accessory pyrochlore (up to 9.1 wt.% REE2O3) and zirconolite (up to...University, University Emb. 7/9, St. Petersburg, 199034, Russia. Tel.: +7 812 3289481. E-mail address: burbankite@gmail |  | | Journal (article/letter/editorial) | | l i t h o s Oscillatory-zoned crystals of pyrochlore-group minerals from the Guaniamo kimberlites, Venezuela...of Sciences, Koptyuga pr. 3, 630090 Novosibirsk, Russia Guaniamo Mining Company, Centro Gerencial Mohedano...2009 Available online 18 April 2009 Keywords: Pyrochlore Betafite Perovskite Kimberlite Carbonatite Venezuela...s t r a c t Oscillatory-zoned crystals of pyrochlore-group minerals are found in the La Ceniza diamondiferous... This is the first known occurrence of the pyrochlore-group minerals in kimberlites worldwide. The minerals |  | | Journal (article/letter/editorial) | | 377–392 Tracing the chemical evolution of primary pyrochlore from plutonic to volcanic carbonatites: the role...the Tchivira carbonatites occur in a plutonic complex, the Bonga carbonatites represent hypabyssal carbonatites...carbonatites are volcanic in origin. In Tchivira pyrochlore, zoning is poorly developed; fluorine is dominant...also increase. Pyrochlores from Catanda display complex textures. They generally have a rounded corroded...carbonatite, zonation in pyrochlore, fluorine, high field strength elements, HFSE, pyrochlore, rare earth elements |  | | Journal (article/letter/editorial) | | discussed using the Kola Alkaline Province (NW Russia and Finland) as an example. The bulk of incompatible...Zr oxide minerals (in particular, perovskite, pyrochlore, ilmenite, baddeleyite and zirconolite) and zircon...cate-rich rocks of carbonatitic affinity) are complex oxide minerals belonging to the perovskite and...industrially viable concentrations of Nb (e.g., Niobec pyrochlore deposit in Canada: Gendron et al., 1984) and...and Zr (e.g., Kovdor baddeleyite deposit in Russia: Ivanyuk et al., 2002; Krasnova et al., 2004). Various |  | Wu, Fu-Yuan, Yang, Yue-Heng, Mitchell, Roger H., Bellatreccia, Fabio, Li, Qiu-Li, Zhao, Zi-Fu (2010) In situ U–Pb and Nd–Hf–(Sr) isotopic investigations of zirconolite and calzirtite. Chemical Geology, 277 (1) 178-195 doi:10.1016/j.chemgeo.2010.08.007 | Journal (article/letter/editorial) | | Prairie Lake (Canada), Afrikanda and Kovdor (Kola, Russia), Guli (Siberia, Russia) and Jacupiranga (Brazil)...[(Ca, Th, Ce)Zr(Ti, Nb)2O7] is cubic and is a pyrochlore-group mineral (White, 1984; Bayliss et al., 1989)...calzirtite NW-1; (e) Afrikanda calzirtite Afrk-1 and zirconolite; (f) Afrikanda zirconolite Afrk-2; (g)... apatite and magnetite. Baddeleyite from this complex has been widely used as standards for U–Pb and...analyses (Wu et al., 2006; Heaman, 2009). The complex consists mainly of pyroxenite, syenite, carbonatite |  | Salnikova, Ekaterina B., Chakhmouradian, Anton R., Stifeeva, Maria V., Reguir, Ekaterina P., Kotov, Alexander B., Gritsenko, Yulia D., Nikiforov, Anatoly V. (2019) Calcic garnets as a geochronological and petrogenetic tool applicable to a wide variety of rocks. Lithos, 338. 141-154 doi:10.1016/j.lithos.2019.03.032 | Journal (article/letter/editorial) | | and Odikhincha in Siberia, Russia; Afrikanda in the Kola Peninsula, Russia) obtained using isotope-dilution...baddeleyite, thorianite, perovskite, titanite, pyrochlore, monazite, bastnäsite, zirconolite and apatite...low precision of isotopic measurements (e.g., pyrochlore and apatite: Lumpkin and Ewing, 1995; Millonig...2013; Chew et al., 2014). Although both EP T pyrochlore and apatite are relatively common accessory constituents...recently is calcic garnets, which represent a complex series of solid solutions, dominated by andradite |  | Zaitsev, AnatolyN., Zhitova, ElenaS., Spratt, John, Zolotarev, AnatolyA., Krivovichev, SergeyV. (2017) Isolueshite, NaNbO3, from the Kovdor carbonatite, Kola peninsula, Russia: composition, crystal structure and possible formation scenarios. Neues Jahrbuch für Mineralogie - Abhandlungen Journal of Mineralogy and Geochemistry, 194 (2) 165-173 doi:10.1127/njma/2017/0052 | Journal (article/letter/editorial) | | NaNbO3, from the Kovdor carbonatite, Kola peninsula, Russia: composition, crystal structure and possible formation...figures and 5 tables Abstract: Isolueshite, a cubic complex oxide with the formula NaNbO3, occurs as euhedral...carbonatite, Kovdor ultrabasic-alkaline complex (Kola, Russia). Average composition of isolueshite, based...and/or pressure. Key words: Isolueshite, perovskite group, carbonatite, electron microprobe analyses, crystal...2004). Principal hosts for Nb are pyrochlore-group minerals (pyrochlore, “uranpyrochlore”, “strontiopyrochlore” |  | | Journal (article/letter/editorial) | | Mineralogy and genesis of pyrochlore-apatitite from The Good Hope Carbonatite, Ontario: A potential Nb...Ontario, Canada P7B 5E1; 2 The Wahl Prospecting Group, Box 1022, Marathon, Ontario, P0T 2E0 ; 3Plato Gold...to the Prairie Lake alkaline rock-carbonatite complex in northwestern Ontario. The occurrence is a heterolithic...phlogopite + potassium feldspar together with pyrochlore-bearing apatitite clasts. The apatitite occurs...clasts up to 5 cm in maximum dimensions. In these pyrochlore occurs principally as euhedral single crystals |  | Cordeiro, Pedro Filipe de Oliveira, Brod, José Affonso, Palmieri, Matheus, de Oliveira, Claudinei Gouveia, Barbosa, Elisa Soares Rocha, Santos, Roberto Ventura, Gaspar, José Carlos, Assis, Luis Carlos (2011) The Catalão I niobium deposit, central Brazil: Resources, geology and pyrochlore chemistry. Ore Geology Reviews, 41 (1) 112-121 doi:10.1016/j.oregeorev.2011.06.013 | Journal (article/letter/editorial) | | deposit, central Brazil: Resources, geology and pyrochlore chemistry Pedro Filipe de Oliveira Cordeiro a...Nelsonite Pyrochlore a b s t r a c t The Catalão I alkaline–carbonatite–phoscorite complex contains both...detail, the orebodies consist of dike swarms of pyrochlore-bearing, olivine-free phoscorite-series rocks...abundant niobium phases in the fresh rock deposit. Pyrochlore supergroup chemistry shows a compositional trend... Carbonates associated with Ba-, Sr-enriched pyrochlore show higher δ18OSMOW than expected for carbonates |  | 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...from the Kaiserstuhl volcanic complex (SW Germany) B.F. Walter, A. Parsapoor, S. Braunger, M.A.W. Marks...A.W. Marks, T. Wenzel, M. Martin, G. Markl , Pyrochlore as a monitor for magmatic and hydrothermal processes...in carbonatites from the Kaiserstuhl volcanic complex (SW Germany). Chemge (2018), doi:10.1016/j.chemgeo...the journal pertain. ACCEPTED MANUSCRIPT 1 Pyrochlore as a monitor for magmatic and hydrothermal processes |  | | Journal (article/letter/editorial) | | Petersburg State University, St. Petersburg 199034, Russia 3 Department of Earth Sciences, Natural History...Canada (Fig. 9a-c); (4) Mn-rich calcite, Khibiny, Russia (Zaitsev 1996); (5,6) coarse- and finegrained Mn-rich...(Wall et al. 1993); (9) Sr-Ba-rich calcite, Murun, Russia (Konev et al. 1996); (10) most Fe-rich member of...core and rim of a calcite phenocryst, Kontozero, Russia (Fig. 5a); (19,20) core and rim of a calcite crystal...(23,24) core and rim of a calcite crystal, Afrikanda, Russia (Fig. 5d); (25,26) core and rim of a dolomite |  | | Journal (article/letter/editorial) | | xxxx Keywords: Carbonatites Niobium ore deposits Pyrochlore Laterite Supergene ores a b s t r a c t This...deposit is unique with respect to the varieties of pyrochlore present; extent of replacement by other minerals;...units of carbonatite contain distinct suites of pyrochlore. Bulk rock analysis for Nb gives no indication...and physical concentration of resistant primary pyrochlore. Intense lateritization results initially in...pyrochlores, and ultimately complete decomposition of pyrochlore and formation of Nb-bearing rutile, brookite |  | Rampilova, Maria, Doroshkevich, Anna, Viladkar, Shrinivas, Zubakova, Elizaveta (2021) Mineralogy of Dolomite Carbonatites of Sevathur Complex, Tamil Nadu, India. Minerals, 11 (4) 355 doi:10.3390/min11040355 | Journal (article/letter/editorial) | | Mineralogy of Dolomite Carbonatites of Sevathur Complex, Tamil Nadu, India Maria Rampilova 1, *, Anna Doroshkevich...Sciences, Sakhyanova Street 6a, 670047 Ulan-Ude, Russia; doroshkevich@igm.nsc.ru Sobolev Institute of Geology...Akademika Koptyuga Avenue 3, 630090 Novosibirsk, Russia; e.zubakova@g.nsu.ru Indian Institute of Science...University, Pirogova Street 1, 630090 Novosibirsk, Russia Correspondence: mburtseva@mail.ru; Tel.: +7-951-637-0871...Abstract: The main mass of the Sevathur carbonatite complex (Tamil Nadu, India) consists of dolomite carbonatite |  | Giebel, R. Johannes, Gauert, Christoph D.K., Marks, Michael A.W., Costin, Gelu, Markl, Gregor (2017) Multi-stage formation of REE minerals in the Palabora Carbonatite Complex, South Africa. American Mineralogist, 102 (6) 1218-1233 doi:10.2138/am-2017-6004 | Journal (article/letter/editorial) | | formation of REE minerals in the Palabora Carbonatite Complex, South Africa R. Johannes Giebel1,2,*, Christoph...Abstract The 2060 Ma old Palabora Carbonatite Complex (PCC), South Africa, comprises diverse REE mineral...occurrences in the PCC as well as in a carbonatite complex in South Africa. The variable REE mineral assemblages...Based on our findings, the Palabora Carbonatite Complex experienced at least two successive stages of intense...2015), the scientific interest to understand the complex REE mineralizations found in carbonatitic systems |  | | | | symmetry. Both crystals were refined in the space group A1̄ with Z = 4, and final R1 indices are 4.4% and...variation (Ribbe, 1980). It is monoclinic and has space-group symmetries A2/a (for most natural samples) and P21/a...(Jambor, 1990) and other scandian members of the pyrochlore group. Recent investigation of the pegmatite has...(Å) b (Å) c (Å) a (º) b (º) g (º) V(Å3) Space group Z 7.0696(4) 8.7167(5) 6.5695(3) 89.7372(11) 113...(Higgins and Ribbe, 1977). Malayaite has space-group symmetry A2/a and there is complete solid solution |  | | Journal (article/letter/editorial) | | synthetic Zr-doped titanite varieties adopt space group A2/a and consist of distorted CaO7 polyhedra together...Institute KSC RAS, 14 Fersmana St., Apatity, 184200, Russia R. H. Mitchell (&) Department of Geology, Lakehead...Na–Nb–Zr-rich titanite found at the Khibina peralkaline complex (Liferovich and Mitchell, submitted). The latter...Paragenesis 1 Afrikanda massif, Kola Alkaline Calcite-apatite-pyroxene Province, Russia pegmatoid 2 ... Khibina massif, Kola Alkaline Province, Russia Zeolite vein cutting through 9.0 feldspatoid syenite |  | 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) | | Carbonatite Metasomatic rocks Pyrochlore-group minerals Columbite-group minerals Fersmite Trace-element...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...thickness. Fractionation of copious amounts of pyrochlore is reflected in the chemical composition of the...fluids of complex chemistry resulted in extensive dolomitization, replacement of the pyrochlore and ferrocolumbite |  | 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) | | The Eocene (ca. 55-38 Ma) Bear Lodge alkaline complex in the northern Black Hills region of northeastern...variations in mineral chemistry controlling the lateral complex-wide geochemical heterogeneity. HREE-enrichment...abundance of secondary REE phosphates (rhabdophane group, monazite, and fluorapatite), while HREE-enrichment...Gold Rush of the 1870s, the Bear Lodge alkaline complex (BLAC) is the focus of renewed interest for rare...carbonatite-hosted REE mineralization at the center of the complex constitutes a combined inferred, measured, and |  | | Journal (article/letter/editorial) | | University, University Emb. 7/9, St Petersburg 199034, Russia Department of Earth Sciences, Natural History Museum...lavas with calcite, minor apatite, fluorite, spinel-group minerals, accessory perovskite and ‘plumbopyrochlore’;...and strontium (up to 1.3 wt.% SrO). The spinel-group minerals are manganese-bearing and include Mn-rich...VOLCANO: AN ALTERED NATROCARBONATITE the spinel-group minerals. Well characterized natural minerals and...minerals identified include apatite, fluorite, spinel-group minerals, perovskite, ‘plumbopyrochlore’, Zr-bearing |  | Melluso, L., Srivastava, R. K., Guarino, V., Zanetti, A., Sinha, A. K. (2010) MINERAL COMPOSITIONS AND PETROGENETIC EVOLUTION OF THE ULTRAMAFIC-ALKALINE - CARBONATITIC COMPLEX OF SUNG VALLEY, NORTHEASTERN INDIA. The Canadian Mineralogist, 48 (1) 205-229 doi:10.3749/canmin.48.1.205 | Journal (article/letter/editorial) | | EVOLUTION OF THE ULTRAMAFIC-ALKALINE – CARBONATITIC COMPLEX OF SUNG VALLEY, NORTHEASTERN INDIA Leone MELLUSO§...005, India Abstract The Sung Valley alkaline complex is a relatively small intrusion of Lower Cretaceous...syenites). The parageneses indicate that this complex was formed by batches of primitive magmas with...titanite, perovskite, clinopyroxene, Sung Valley complex, India. Sommaire Le complexe alcalin de Sung Valley...The Sung Valley ultramafic-alkaline–carbonatite complex (UACC) is one of the Cretaceous intrusions emplaced |  | | Journal (article/letter/editorial) | | of simple system partition coefficients to more complex silicate and carbonate melt compositions. Therefore...compared these data with our results from a more complex H2O- and CO2bearing silicate system, the average...the system SiO2–CaO–TiO2, whereas Mix 2 is more complex in the system SiO2–CaO–TiO2–MgO– K2O–Al2O3. All...made after our reconnaissance experiments in more complex carbonate systems yielded only small perovskite...run PC520 did not quench to a glass, but formed complex aggregates of quench carbonate crystals. We therefore |  | 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) | | Sources of the Ural and Timan Carbonatite Complexes (Russia): Insights from Trace Element, Rb–Sr, and Sm–Nd...Sources of the Ural and Timan Carbonatite Complexes (Russia): Insights from Trace Element, Rb–Sr, and Sm–Nd...Sciences, Vonsovskogo Str. 15, 620016 Ekaterinburg, Russia A.P. Vinogradov Institute of Geochemistry, Siberian...of Sciences, Favorskogo Str. 1A, 664033 Irkutsk, Russia; vlad@igc.irk.ru Institute of Geology, Komi Scientific...Sciences, Pervomayskaya Str. 54, 167982 Syktyvkar, Russia; udoratina@geo.komisc.ru Karpinsky Russian Geological |  | Pieczka, Adam, Hawthorne, Frank C., Ma, Chi, Rossman, George R., Szełęg, Eligiusz, Szuszkiewicz, Adam, Turniak, Krzysztof, Nejbert, Krzysztof, Ilnicki, Sławomir, Buffat, Philippe, Rutkowski, Bogdan (2017) Żabińskiite, ideally Ca(Al0.5Ta0.5)(SiO4)O, a new mineral of the titanite group from the Piława Górna pegmatite, the Góry Sowie Block, southwestern Poland. Mineralogical Magazine, 81 (3) 591-610 doi:10.1180/minmag.2016.080.110 | Journal (article/letter/editorial) | | Ca(Al0.5Ta0.5)(SiO4)O, a new mineral of the titanite group from the Piława Górna pegmatite, the Góry Sowie...with (Al,Ta,Nb)- and (Al,F)-bearing titanites, a pyrochlore-supergroup mineral and a K-mica in compositionally...synthetic material. Żabińskiite is triclinic (space group symmetry A1) and has unit-cell parameters a = 7...with titanite and other minerals of the titanite group. Żabińskiite crystallized along with (Al,Ta,Nb)-bearing...fluids. K E Y WO R D S : żabińskiite, titanite group, new mineral species, optical data, electron microprobe |  | | Journal (volume) | | series minerals from IujaVritemalignite complex of burbankite group and mineral composition of raremetaluranium...Kuu granite massif of Central Kazakhstan. Another group of article dwells on crystal chemistry and chemical...Kantor, Natalia A. Pekova Leader of publishing group Michael B. Leibov Executive Editor Ludmila А. Cheshko...RAS Bld. 18/2 Leninsky Prospekt, Moscow, 117071, Russia phone (7095) 9520067; fax (7095) 9524850...mineral@fmm.ru website: www.fmm.ru Printed in Russia Ocean Pictures Ltd 4871 S. Dudley St., Littleton |
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