 | Menezes Filho, L. A. D., Atencio, D., Andrade, M. B., Downs, R. T., Chaves, M. L. S. C., Romano, A. W., Scholz, R., Persiano, A. I. C. (2015) Pauloabibite, trigonal NaNbO3, isostructural with ilmenite, from the Jacupiranga carbonatite, Cajati, Sao Paulo, Brazil. American Mineralogist, 100 (2) 442-446 doi:10.2138/am-2015-4745 | Journal (article/letter/editorial) | | isostructural with ilmenite, from the Jacupiranga carbonatite, Cajati, São Paulo, Brazil Luiz A.D. Menezes Filho1...Gerais, Brazil 2 Instituto de Geociências, Universidade de São Paulo, Rua do Lago 562, 05508-080, São Paulo...Paulo, São Paulo, Brazil 3 Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369...369, 13560-970, São Carlos, São Paulo, Brazil 4 Department of Geosciences, University of Arizona, Tucson...Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil 6 Departamento de Física do Instituto de Ciências |  | | Journal (article/letter/editorial) | | com/locate/lithos Fluid inclusions in apatite from Jacupiranga calcite carbonatites: Evidence for a fluid-stratified...Carbonatites of the Jacupiranga alkaline–carbonatite complex in São Paulo State, Brazil, were used to investigate...magnesian siderite and baddeleyite, ancylite(Ce), monazite-(Ce) and allanite. The Sr- and REE-rich nature...carbonatite in the plutonic Jacupiranga Complex in São Paulo State, Brazil, contain fluid inclusions and...Precambrian basement, flanking the Paraná Basin in Brazil (Fig. 1a), is a NNW-elongated intrusive body (Fig |  | 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) | | 815 Ca 0.077 0.072 Sr 0.005 0.005 La 0.007 0.008 Ce 0.013 0.015 Pr 0.001 0.002 Nd 0.003 0.003 Th 0.002...MitChell, R. H. (1998): Lueshite, pyrochlore and monazite-(Ce) from apatite-dolomite carbonatite, Lesnaya...isostructural with ilmenite, from the Jacupiranga carbonatite, Cajati, São Paulo, Brazil. – Amer. Miner. 100: 442...(2004): Phoscorites and Carbonatites from Mantle to Mine: the Key Example of the Kola Alkaline Province....carbonatites. – Phoscorites and Carbonatites from Mantle to Mine: the Key Example of the Kola Alkaline Province. |  | | Report (issue) | | REPORT Brazil Investigations (IR)BR-76 NIOBIUM (COLUMBIUM) AND TANTALUM RESOURCES OF BRAZIL U. S. Geological... NIOBIUM (COLUMBIUM) AND TANTALUM RESOURCES OF BRAZIL By Max G. White U.S. Geological Survey CONTENTS...Distribution of alkalic intrusives in Southern Brazil .. 16 Alkalic intrusions in the western side of................................. 25 Northeastern Brazil ............................... 25 Territory of................................. 29 Northeastern Brazil .......................... 30 Research suggestions |  | | Journal (article/letter/editorial) | | magnetite, titanite, pyrochlore, monazite-(Ce), bastnaesite-(Ce), parisite-(Ce), and goyazite. Most of the...Paleoproterozoic collision zone of the Borborema province, NE Brazil (EJ dos Santos et al. 2013; RV Santos et al. 2013);...Mount Weld, Australia (Lottermoser 1990) and Araxá, Brazil (Neumann and Medeiros 2015). The REE mineralisation...concentrates; (a) Mixture of monazite [(Ce,La,Nd,Th)PO4] and bastnaesite [(Ce, La)(CO3)F] forms orange-brown...in millimetres (d) Pyrochlore concentrate, Niobec Mine, Quebec, Canada; scale in millimetres. forming |  | | Journal (article/letter/editorial) | | three operating Nbmines [Araxá and Catalão-II (Brazil) and St. Honoré (Canada)]. All produce ferroniobium...only operating Nb mine in under-saturated peralkaline syenites is the Karnasurt mine (Kremenetsky et al...granite (Bastos Neto et al., 2009) at Pitinga (Brazil), although primarily a Sn deposit, produces Nb...Lueshite Tausonite Niobates–Zirconates Fergusonite–(Ce) Ferrocolumbite Fersmite Zirconolite Silicates Niocalite...titanite (□,Ba,Sr)2−x(Nb, Ti)2O6(OH,F)1−y.nH2O (□ Ce,Ca)2−x(Nb,Ti)2O6(OH,F)1−y,nH2O (H2O,□, Sr)2−x(Nb |  | | Journal (article/letter/editorial) | | Nb2O5) and REE (up to 19.4% Y2O3 + REE2O3), with Ce the dominant REE. The mineral formula, expressed...baddeleyite, manganoan magnetite, and monazite-(La), a rare species of monazite. This suite of minerals, with...zirconolite, unit-cell parameters, crystal chemistry, monazite-(La), Laacher See eruptive center, Eifel volcanic...terres rares, TR (jusqu’à 19.4% de Y2O3 + TR2O3), le Ce surtout. Sa formule chimique, exprimée ici en termes...magnétite manganifère, et la monazite-(La), membre rare du groupe de la monazite. Cette suite de minéraux |  | Neave, David A., Black, Martin, Riley, Teal R., Gibson, Sally A., Ferrier, Graham, Wall, Frances, Broom-Fendley, Sam (2016) On the Feasibility of Imaging Carbonatite-Hosted Rare Earth Element Deposits Using Remote Sensing. Economic Geology, 111 (3) 641-665 doi:10.2113/econgeo.111.3.641 | Journal (article/letter/editorial) | | notable exceptions of monazite-(Ce), bastnäsite(Ce), parisite-(Ce,) and synchysite-(Ce), there are few published...successfully delimited high Nd occurrences in a monazite-mineralized outcrop of the Fen complex in Norway...Goethite Phlogopite 3 20 37 Bastnäsite-(Ce) Monazite-(Ce) Magnetite 9 5 500 1000 1500 2000 Wavelength...(2014). Note the complexity of bastnäsite-(Ce), monazite-(Ce), and fluorapatite spectra that result from...exceptions include the growth of primary bastnäsite-(Ce) at Mountain Pass (Mariano, 1989) and burbankite |  | Hurai, Vratislav, Huraiová, Monika, Gajdošová, Michaela, Konečný, Patrik, Slobodník, Marek, Siegfried, Pete R. (2018) Compositional variations of zirconolite from the Evate apatite deposit (Mozambique) as an indicator of magmatic-hydrothermal conditions during post-orogenic collapse of Gondwana. Mineralogy and Petrology, 112 (3) 279-296 doi:10.1007/s00710-017-0538-7 | Journal (article/letter/editorial) | | Spectrometry) dating of baddeleyite, zircon and monazite-(Ce) (Siegfried 1999; Hurai et al. 2017) revealed...Pb – Mα, PbCO3 ; Y – Lα, YPO4; La – Lα, LaPO4; Ce – Lα, CePO4; Pr – Lβ, PrPO4; Nd – Lα, NdPO4; Sm... and those with 100 nA beam current: La (10/10), Ce (10/10), Pr (20/10), Nd (10/10), Sm (10/10), Eu (30/15)... U – 225, Pb – 115, Al – 200, Y – 450, La – 680, Ce – 600, Pr – 620, Nd – 500, Sm – 630, Eu – 570, Gd...the method developed by Montel et al. (1996) for monazite. The recalculation procedure included a statistical |  | Melluso, Leone, Guarino, Vincenza, Lustrino, Michele, Morra, Vincenzo, de' Gennaro, Roberto (2017) TheREE-and HFSE-bearing phases in the Itatiaia alkaline complex (Brazil) and geochemical evolution of feldspar-rich felsic melts. Mineralogical Magazine, 81 (2) 217-250 doi:10.1180/minmag.2016.080.122 | Journal (article/letter/editorial) | | HFSE-bearing phases in the Itatiaia alkaline complex (Brazil) and geochemical evolution of feldspar-rich felsic...in the metamorphic rocks of the Serra do Mar, SE Brazil. The nepheline syenites are characterized by assemblages...Cretaceous-Cenozoic alkaline province of southeastern Brazil, which is distributed all around the Paraná Basin...Fig. 1a). The alkaline magmatism in southeastern Brazil spans from ∼132 to ∼58 Ma, with a climax at ∼85–90...earliest intrusions (Anitapolis, Juquiá and Jacupiranga, 132–127 Ma) are coeval with the neighbouring |  | | Journal (article/letter/editorial) | | norsethite (Cooper 1971), strontianite, daqingshanite(Ce) (Cooper 1986), a Ba–REE–Na carbonate, carbocernaite...1993). Other accessory minerals include apatite, monazite, sporadic barite, hematite, niobian rutile, thorite...included accelerating voltage of 15 kV (or 20 kV for monazite), and sample current on MgO of 20 mA. Standards...calcite – ankerite – strontianite – daqingshanite-(Ce), and ankerite assemblages. The range in compositions...015Mn0.002–0.052Ba0.974–1.026. Daqingshanite-(Ce), (Sr,Ca,Ba)3(Ce,La,Nd)PO4 (CO3)3, was first described as |  | Doroshkevich, Anna G., Veksler, Ilya V., Klemd, Reiner, Khromova, Elena A., Izbrodin, Ivan A. (2017) Trace-element composition of minerals and rocks in the Belaya Zima carbonatite complex (Russia): Implications for the mechanisms of magma evolution and carbonatite formation. Lithos, 284. 91-108 doi:10.1016/j.lithos.2017.04.003 | Journal (article/letter/editorial) | | magmatic evolution of the complex and clarifying the CE P origin of carbonatites. We conclude that the observed...minerals. The geochemical data are used for the CE P assessment of the roles of fractional crystallization...ankerite carbonatite (Doroshkevich et al., 2016). CE P Rock textures and mineral assemblages were studied...nA and 15 kV, for REE minerals, pyrochlore and monazite 40 nA and 20 kV, for apatite 10 nA and 20 kV....out in the Geological Institute SB RAS, Ulan- 4. CE P Ude, Russia and the Zavaritsky Institute of Geology |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...[franslation: BTS - Business Translation Services]. Sao Paulo: Solaris Cultural Publications, 2009. Original title:...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite |  | | Book | | On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma |  | 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) | | rutile (Ti, Kα, PETJ), LaB6 (La, Lα, PETJ), CeO2 (Ce, Lα, PETJ), corundum (Al, Kα, TAPH), periclase (Mg...with quartz replacements and are scarce. Parisite-(Ce) forms fine anhedral crystals less than 10 microns...ilmenorutile and synchysite-(Ce). Tiny radial aggregates of synchysite-(Ce) (Figure 4f) occur in ankerite...quartz. REE phosphates are less abundant. Rhabdophane-(Ce) forms botryoidal aggregates of fine radial fibres...fine-grained aggregates of ilmenorutile and lucasite-(Ce) replace ilmenite and magnetite. Minerals 2019 |  | | Journal (article/letter/editorial) | | isotopic composition. Although all of the Blue AC CE P River carbonatites were emplaced as sills prior...corresponding author: rmitchel@lakeheadu.ca AC CE P 1 D River; Canadian Cordillera. ACCEPTED MANUSCRIPT...mantle (Bell, 1998; Bell and Blenkinsop, 1987) AC CE P The Canadian Cordillera in British Columbia is...genetic relationships, if any, between these AC CE P occurrences. 2. Blue River area carbonatites...consists of several folded carbonatite sills and a AC CE P titanite-bearing nepheline syenite dike (see below) |  | | Journal (article/letter/editorial) | | Subbotin et al., 1999) and Barra do Itapirapuã, Brazil (Andrade et al., 1999). With the exception of Mountain...–fluocarbonates synchysite –(Ce) and parisite– (Ce), Ca-free fluocarbonate bastnäsite– (Ce), alkali carbonates...and hydrous carbonate ancylite –(Ce). The phosphate, monazite – (Ce), is a major non-carbonate REE mineral...minerals, including ancylite – (Ce), synchysite –(Ce), monazite– (Ce) and other REE – Sr– Ba-bearing...established (1) ancylite-(Ce) + strontianite + baryte and (2) synchysite-(Ce) + strontianite + baryte |  | Chakhmouradian, Anton R., Cooper, Mark A., Reguir, Ekaterina P., Moore, Meghan A. (2017) Carbocernaite from Bear Lodge, Wyoming: Crystal chemistry, paragenesis, and rare-earth fractionation on a microscale. American Mineralogist, 102 (6) 1340-1352 doi:10.2138/am-2017-6046 | Journal (article/letter/editorial) | | associated with pyrite, strontianite, barite, ancylite-(Ce), and late-stage calcite, and is interpreted to have...Kalkfeld, and Ondurakorume (Namibia), Araxá and Jacupiranga (Brazil), Rocky Boy (Montana, U.S.A.), Sturgeon Narrows...from metasomatized REE-rich dolomite in the West mine of the Bayan Obo deposit, China (Zhang et al. 1995)...negative) to members of the calcioancylite-(Ce)—ancylite-(Ce) series, (Ca,Sr)2-xREEx(CO3)2(OH)x⋅(2 – x)H2O...burbankite and products of its alteration [ancylite-(Ce), strontianite, barite, and calcite]; smaller ones |  | Xu, Cheng, Kynicky, Jindrich, Chakhmouradian, Anton R., Qi, Liang, Song, Wenlei (2010) A unique Mo deposit associated with carbonatites in the Qinling orogenic belt, central China. Lithos, 118 (1) 50-60 doi:10.1016/j.lithos.2010.03.013 | Journal (article/letter/editorial) | | galena and REE minerals (parisite, bastnäsite and monazite). Both molybdenite and galena are characterized...increases from parisite-(Ce) [average (La/Nd)n = 2.1] to bastnäsite-(Ce) and monazite-(Ce) [average (La/Nd)n...(Carten et al., 1993; Klemm et al., 2008), Endako mine in the Canadian Cordillera (Villeneuve et al., 2001)...molybdenite, REE-fluorocarbonates [CaxREEy(CO3)x + yFy], monazite (REEPO4) and brannerite (UTi2O6). Minor fluorite...barite; Mnz, monazite-(Ce); Par, parisite-(Ce); Y–Mg, unknown Y–Mg silicate; Bas, bastnäsite-(Ce). C. Xu |  | | Journal (article/letter/editorial) | | occurs with magnetite, monazite, bastnaesite, and parisite. Fine-grained monazite occurs as fracture fillings...of the Kuangou fault zone, the lithology in the mine region is represented by the recrystallized marbles...g. bastnaesite [(Ce,La) (CO3)F], parisite [(Ce,La)2Ca(CO3)3F2], cordylite [CaBa(Ce,La)2(CO3)4F2], huanghoite...[BaCe(CO3)2F], and cebaite [Ba 3 Ce 2 (CO 3 ) 5 F 2 ]) and monazite [(Ce,La,Nd,Th)PO4] hosted in dolomite...B256, PPL; (d) fine-grained dolomite marble, fine monazite clusters (high relief) are distributed along fractures |  | | Journal (article/letter/editorial) | | clinohumites from harzburgite and garnet pyroxenite. Monazite-(Ce) lamellae occur in apatites from the garnet...subordinate clinohumite, magnesite, chromite, rutile, monazite-(Ce), and apatite. Observed parageneses and compositions...magnetite lamellae in olivine and Ti clinohumite, and monazite lamellae in apatite; which are described below...assemblage of Ti clinohumite, magnesite (MgCO3), monazite, and REE-rich apatite [Ca5(PO4)3(F,OH,Cl]. Ubiquitous...clinohumite in the carbonatites of the Jacupiranga complex, Brazil: mineral chemistry and comparison with |  | Nikolenko, Anna M., Doroshkevich, Anna G., Ponomarchuk, Anton V., Redina, Anna A., Prokopyev, Ilya R., Vladykin, Nikolay V., Nikolaeva, Irina V. (2020) Ar-Ar geochronology and petrogenesis of the Mushgai–Khudag alkaline‑carbonatite complex (southern Mongolia). Lithos, 372. 105675pp. doi:10.1016/j.lithos.2020.105675 | Journal (article/letter/editorial) | | Ba-phlogopites have been re described in the Jacupiranga alkaline complex, Brasil (Gaspar and Wyllie,...well as hydrothermal phosphosiderite, goethite, monazite-Ce, celestine, fluorite, barite, gypsum, and of...et al., 2018). -p monazite-Ce–celestine–barite mineral association. Monazite-Ce within these units contains...ur LREEs), K-feldspar, dolomite, goethite, monazite-Ce, quartz, and REE fluorcarbonates (bastnäsite...are calcite, barite, apatite, celestine, quartz, monazite, pyrolusite, and REE Fcarbonates (parisite and |  | | Journal (article/letter/editorial) | | pegmatite dykes. Age determination using U-Th-Pb on monazite and xenotime indicate an average emplacement age...as (Y-REE-U-Th)(Nb-Ta-Ti) oxides, uraninite, monazite-(Ce) and zircon (Guastoni et al., 2014; Capitani...Pegmatite, Borborema Pegmatitic Province, Acarí County, Brazil. These authors described <2 μm × 30 μm exsolution...and Wyllie (1983) reported ilmenites from the Jacupiranga carbonatites with (Nb2O5 + Ta2O5) content up...Norte) in the Borborema Pegmatitic Province, NE-Brazil. Estudos Geológicos, 16, 3–15. Blake, R.L. and |  | | Journal (article/letter/editorial) | | carbonatite occurrences can be divided into two CE belts. The first is a 350 km long and 75 km wide...equivalent to 4.2% of European resources). Pyrochlore, monazite, apatite, britholite bearing subvolcanic rocks...produced from alkaline rocks and carbonatites CE (Chakhmouradian and Wall, 2012; Jones et al., 2013)...exploration of minor or less well-known resources CE will become attractive and potentially economic...rocks in Italy has deep historical roots. The first CE carbonatite described in Italy was discovered as |  | | Journal (article/letter/editorial) | | to the ‘‘belovite scheme’’. Solid inclusions of monazite and strontianite occur along cleavages and on...Accessory minerals Pyrochlore, thorite, columbite, monazite-(Ce) and zircon are accessory minerals in both the...the first and main carbonatites. Monazite-(Ce) occurs as fine dissemina- Table 3 Composition of calcite-siderite...graphite and apatite. The monazite(Ce) is strongly light REE-enriched (Ce/La, Ce/Nd and La/Nd average ratios...first phase carbonatite but fewer inclusions of monazite. There are two types of calcite, one idiomorphic |
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