 | | Report (issue) | | Hydroxycalciopyrochlore Crystal Data: Isometric. Point Group: 4/m 3 2/m. combination with dodecahedra and tetrahexahedra...Data: Space Group: Fd3 m. a = 10.381(4) Z=8 X-ray Powder Pattern: Maoniuping mine, Sichuan Province,... China. [After heating.] 2.966 (100), 1.814 (34), 1.546 (21), 2.569 (18), 1.480 (5), 1.2815 (5), 1.1776...25 0.38 [2.15] 0.16 98.92 (1) Maoniuping mine, Sichuan Province, China; average of 10 electron microprobe...02[(OH)1.01F0.09]Σ=1.10. Mineral Group: Pyrochlore supergroup, pyrochlore group. Occurrence: In a rare-earth |  | | Report (issue) | | Fe3+)18O38 Mianningite Crystal Data: Hexagonal. Point Group: 3 . As tabular crystals to 2 cm. Physical Properties:...Space Group: R3 . a = 10.3462(5) c = 20.837(2) Z=3 X-ray Powder Pattern: Baozi Hill, Mianning county, Sichuan...Sichuan province, China. 2.627 (100), 2.144 (100), 3.065 (75), 2.254 (70), 1.545 (60), 2.883 (55), 2.476...21 0.09 98.60 (1) Baozi Hill, Mianning county, Sichuan province, China; average of 22 electron microprobe...083Al0.026Cr3+0.017)Σ=18.000O38. Mineral Group: Crichtonite group. Occurrence: In fractures within lamprophyre |  | Ge, Xiangkun, Fan, Guang, Li, Guowu, Shen, Ganfu, Chen, Zhangru, Ai, Yujie (2017) Mianningite, ([], Pb, Ce, Na) (U4+, Mn, U6+) Fe3+ 2(Ti, Fe3+)18 O38, a new member of the crichtonite group from Maoniuping REE deposit, Mianning county, southwest Sichuan, China. European Journal of Mineralogy, 29 (2) 331-338 doi:10.1127/ejm/2017/0029-2600 | Journal (article/letter/editorial) | | crichtonite group from Maoniuping REE deposit, Mianning county, northwest Sichuan, China 4 XIANGKUN...crichtonite group from the Maoniuping REE deposit, Mianning county, Sichuan province, China. It was found...hydroxylapatite, titanite, ilmenite, rutile, garnet-group minerals, zircon, allanite-(Ce), monazite-(Ce),...parisite-(Ce), maoniupingite-(Ce), thorite, pyrochlore-group minerals and chlorite. Mianningite occurs... Mianningite is trigonal, belongs to the space group R3, and has unit-cell parameters a = 10.3462(5) |  | | Report (issue) | | Fe2+, Nb)4Si4O22 Crystal Data: Hexagonal. Point Group: 3 . As subhedral to euhedral tabular crystals,...(680) 16.8-16.1, (700) 16.5-15.7 Cell Data: Space Group: R3 . a = 10.3462(5) c = 20.837(2) Z = 3 X-ray Powder...Pattern: Baozi Hill, near the Maoniuping REE deposit, Sichuan province, China. 2.627 (100), 2.144 (100),...09 98.60 (1) Baozi Hill, near the Maoniuping REE deposit, China; average electron microprobe analysis...083Al0.026Cr3+0.017)Σ=18.000O38. Mineral Group: Crichtonite group. Occurrence: In fractures in lamprophyre |  | 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...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 and |  | 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...complexes, Namibia; Juquiá, Brazil; Bayan Obo, China; Karonge, Burundi; and the Barra do Itapirapuã carbonatite...biotite/phlogopite, aegirine-augite, fluorapatite, ilmenite, pyrochlore/betafite, pyrrhotite, pyrite, sphalerite, and...(Mariano, 1978b). Our investigations show U-rich pyrochlore/betafite occurs as inclusions in ilmenite or |  | | Journal (issue) | | Chapmanite Red Bird Mine, Pershing County, Nevada Bob Werner werner@lcturbonet.com The Red Bird Mine is located...Juniper (a.k.a. Nevada Quicksilver). The Red Bird Mine was located in 1907, but there was no recorded production...1949 the mine was worked sporadically and produced 3,266 flasks of mercury. Additionally, the mine produced...page 2) Fig. 1: Chapmanite, 9 x 6 x 5 cm, Red Bird Mine. Author's collection. Letter from R. Herzenberg...(Continues on page 3) Herzenbergite from Maria-Tersea Mine, Huari, Oruro, Bolivia. Identified by XRD, this |  | | Journal (article/letter/editorial) | | CaAl2(PO4)2F2, a new mineral from the Hinomaru–Nago mine, Yamaguchi Prefecture, Japan. Journal of Mineralogical...mineral discovered in the Hinomaru-Nago mine, Kiyo area, Abu, Abu County, Yamaguchi Prefecture, Japan (34°53′N...993(3), c = 4.6872(8) Å, V = 664.3 Å3, Z = 4, space group P212121. Abuite has atomic coordinates similar to...Kato, A. (1998) Phosphates from the Hinomaru-Nako mine, Abu-cho, Yamaguchi Prefecture, Western Japan. Memoirs...Achalaite, Fe2+TiNb2O8, a new member of the wodginite group from the La Calandria granitic pegmatite, Córdoba |  | | Journal (article/letter/editorial) | | hydroxycalciopyrochlore in marble exposed in the Václav graphite mine at Bližná, southern Czech Republic. Roundish grains...apatite. This is the first occurrence of a pyrochlore-group mineral in regionally metamorphosed marble...hydroxycalciopyrochlore, pyrochlore, carbonatite-like marble, marble, Moldanubian Varied Group Introduction Drábek...in the Bližná graphite mine, which contains the following minerals: pyrochlore, ilmenite, magnetite, euxenite...al. 1987). Drábek et al. (1986) called the pyrochlore-group mineral “betafite”, a term consistent with |  | | Journal (article/letter/editorial) | | švenekite, tangdanite, vanadoallanite-(La), and pyrochlore supergroup species fluorcalciomicrolite, fluorcalcioroméite...30 × 20 μm shows the mineral is trigonal, space group R3; a = 15.0324(8), c = 8.8776(5) Å, V = 1737.3...the MammothSaint Anthony mine (32°42′23″N, 110°40′59″W), Tiger, Pinal County, Arizona, U.S.A. It occurs...Laboratory), yielding orthorhombic symmetry, space group Pnnm, a = 13.969(9), b = 14.243(10), c = 5.893(4)...acquired the first mineral from Mammoth-Saint Anthony mine in 1978 and since then he has intensively studied |  | 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) | | June 2012, Vol. 76(3), pp. 535–549 Chevkinite-group minerals from Russia and Mongolia: new compositional...Electron-microprobe analyses of Russian and Mongolian chevkinite-group minerals from little-known host lithologies, including...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...perrierite-(Ce), polyakovite-(Ce). Introduction CHEVKINITE-GROUP minerals (CGMs) are being recognized increasingly |  | | Journal (article/letter/editorial) | | Relationship to other minerals Crystal system, Space group; Structure determined, yes or no Unit-cell parameters... DOI: 10.1180/minmag.2011.075.5.2549 Kirovskii mine, Mount Kukisvumchorr, Khibiny alkaline massif, Kola...Ďud’a *E-mail: bacikp@fns.uniba.sk Tourmaline group Trigonal: R3m; structure determined a = 15.9853(12)...2549 2561. IMA No. 2011-014 Anorpiment As2S3 Palomo mine, Castrovirreyna Province, Huancavelica Department...collections of the Natural History Museum of Los Angeles County, catalogue numbers 63514 and 63544n and the Mineral |  | | Journal (article/letter/editorial) | | rare earth elements (REE) are concentrated in pyrochlore crystals in the carbonatite and alkaline breccias...and overgrown by five secondary generations of pyrochlore formed during subsolidus stages and have higher...and Ti contents. The second, third, and fourth pyrochlore generations are associated with late fluids also...and REE rich minerals; whereas fifth and sixth pyrochlore generations are linked to the fenitization process...resources should not be neglected. Keywords: Nb; pyrochlore; carbonatite; magmatic breccia; alkaline subsaturated |  | 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 |  | 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...extensive dolomitization, replacement of the pyrochlore and ferrocolumbite by fersmite, and development |  | | Journal (article/letter/editorial) | | ilmenite, biotite, baddeleyite, zircon, rutile, 23 pyrochlore-like and rare earth element minerals. Beforsite...of Brazil - CPRM and Mining Ventures 52 Brasil Group - MVB (Parisi et al., 2010; Toniolo et al., 2010;...from a soil survey by Mining Ventures Brasil 61 Group. 62 The Caçapava do Sul carbonatites are a recent...eolian 122 Cambrian sediments from the Guaritas Group, Camaquã post-collisional Basin (Rocha 123 et...fault system that overprints the Bom 148 Jardim Group, a volcanosedimentar Ediacaran unit from the Camaquã |  | Ghobadi, Mahdi, Gerdes, Axel, Kogarko, Lia, Hoefer, Heidi, Brey, Gerhard (2018) In situ LA-ICPMS Isotopic and Geochronological Studies on Carbonatites and Phoscorites from the Guli Massif, Maymecha-Kotuy, Polar Siberia. Geochemistry International, 56 (8) 766-783 doi:10.1134/s0016702918080049 | Journal (article/letter/editorial) | | uncommon REE-minerals, such as loparite, eudialyte, pyrochlore, calzirtite and zirconolite. Generally, the abundances...carbonatite, Phos: phoscorite, PV: perovskite, Pyr: pyrochlore, Ap: apatite, Bad: baddeleyite. The volcanic...kirschteinite, phlogopite, aegirine diopside, pyrochlore, perovskite, baddeleyite and calzirtite. Igneous...and magnetite with accessory dolomite, apatite, pyrochlore, perovskite, baddeleyite, zirconolite, ancylite...barite, strontianite, amphibole-group minerals, hematite, and pyrochlore- group minerals as accessory phases |  | Xu, Cheng, Campbell, Ian H., Allen, Charlotte M., Chen, Yanjing, Huang, Zhilong, Qi, Liang, Zhang, Guishan, Yan, Zaifei (2008) U–Pb zircon age, geochemical and isotopic characteristics of carbonatite and syenite complexes from the Shaxiongdong, China. Lithos, 105 (1) 118-128 doi:10.1016/j.lithos.2008.03.002 | Journal (article/letter/editorial) | | carbonatite and syenite complexes from the Shaxiongdong, China Cheng Xu a,⁎, Ian H. Campbell b, Charlotte M. Allen...Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China Research School of Earth Sciences, Australian National...of Geology, Peking University, Beijing 100871, China A R T I C L E I N F O Article history: Received...online 18 March 2008 Keywords: South Qinling South China block Carbonatite and syenite complexes Calcite...which formed by the joining of the North China and South China blocks. The Shaxiongdong carbonatite–syenite |  | Zozulya, Dmitry, Lyalina, Lyudmila, Macdonald, Ray, Bagiński, Bogusław, Savchenko, Yevgeny, Jokubauskas, Petras (2019) Britholite Group Minerals from REE-Rich Lithologies of Keivy Alkali Granite—Nepheline Syenite Complex, Kola Peninsula, NW Russia. Minerals, 9 (12) 732 doi:10.3390/min9120732 | Journal (article/letter/editorial) | | minerals Article Britholite Group Minerals from REE-Rich Lithologies of Keivy Alkali Granite—Nepheline...of economic importance) and diverse britholite group minerals. The REE and actinides distribution in...crystallization of fluorbritholite-(Ce). Britholite group minerals (mainly fluorcalciobritholite and ‘calciobritholite’)...up to theoretical apatite. Keywords: britholite group minerals; alkali granite; nepheline syenite; pegmatite;...Peninsula; Russia 1. Introduction The britholite group contains relatively common accessory minerals that |  | Milani, Lorenzo, Bolhar, Robert, Frei, Dirk, Harlov, Daniel E., Samuel, Vinod O. (2017) Light rare earth element systematics as a tool for investigating the petrogenesis of phoscorite-carbonatite associations, as exemplified by the Phalaborwa Complex, South Africa. Mineralium Deposita, 52 (8) 1105-1125 doi:10.1007/s00126-016-0708-2 | Journal (article/letter/editorial) | | baddeleyite, nickel, gold, silver and platinum group elements (Groves and Vielreicher 2001; Rudashevsky...potentially affecting the REE budget, such as pyrochlore, zirconolite and perovskite (Williams 1996; Hornig-Kjarsgaard...various accessory minerals, including baddeleyite, pyrochlore, zirconolite, thorianite, spinel, perovskite...were collected in the core yard of the Loolekop Mine (presently operating by PMC, Palabora Mining Company)...drill SL113 23°59'11.63" S; 31°07'33.23" E GC813A mine tails - -405.5 Phos 3 50 15 25 7 - Ilm |  | 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) | | related to the grade for individual, or a limited group of, the elements. Taking the total REE resource...small number of large deposits (e.g. Bayan Obo, China; Mountain Pass, USA; Mount Weld, Australia; Lovozero...absorption deposits in weathered granite of southern China; Kanazawa and Kamitani, 2006). However, a number...currently known REE TE D deposits, only Bayan Obo, China, with the ore grade defined at 4.1% REE2O3, counts...considered as individual elements, rather than as a group, then the corresponding tonnage accumulation indices |  | | 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...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...supergroup (Pasero et al., EJM 22, 163-179, 2010), pyrochlore supergroup (Atencio et al., CM 48, 673-698, 2010) |  | | Journal (article/letter/editorial) | | bodies in nepheline syenite and contain britholitegroup minerals and zircon as main ore minerals. Geochemical...Postcrystallization alterations of the britholitegroup minerals from the Sakharjok deposit resulted in...1134/S0016702915080108 INTRODUCTION The britholitegroup minerals were discovered over hundred years ago...“britholite” is reserved for the entire mineral group, without subdivision into mineral species. Halden...Los Molles (Lira and Ripley, 1992), Weishan and Maoniuping (Wu et al., 1996), Pilanesberg and Ilimuassaq |  | | Journal (article/letter/editorial) | | 1007/s00710-017-0493-3 ORIGINAL PAPER Britholite-group minerals as sensitive indicators of changing fluid...contains a remarkably diverse number of britholite group minerals, pointing to different physico-chemical...CO2. From REE and F variations of the britholite group minerals possible fluid compositions at different...Pegmatite . Britholite-group minerals . Fluid composition Introduction The britholite-group minerals (BGM) contain...(REE = Y + Ln) in specific magmatic rocks. The group belongs to the apatite supergroup and currently |  | | Book (edition) | | Minerals that are listed as belonging to the same group are similarly closely comparable in composition...Quadrangle, Green River Formations, near Dragon, Uintah County. Utah, USA. 63. 930-937, Science 223, 1075-1076..., Poudrene quany, Moni Saint-Hilaire, Rouville County, Quebec, Canada. New Mins. (1997), CM32, 843-854...Abernathyitc, K[(UO 2 )(AsO,)](HP) 3, tet., Fumerole No. 2 mine, Temple Mountain. on the southeast flank of the...about 47 miles southwest of Green River, Emery County, Utah, USA, 41. 82-90, 49, 1578-1602 (str.) Aulunite |
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