 | | Journal (article/letter/editorial) | | (REE) carbonates from alkaline pegmatites of Mount Malosa, Malawi AlessAndro GuAstoni,1 FAbrizio nestolA,1...chemistry and alteration of bastnäsite-(Ce), parisite-(Ce), and synchysite(Ce) was investigated by EMPA, TG, DTG...Significant amounts of OH in both the parisite-(Ce) and synchysite-(Ce) were found, and these data are the first...unit-cell volume for parisite and synchysite. Parisite-(Ce) and synchysite-(Ce) OH end-members have not been...carbonates, Mount Malosa, Malawi, hydration introduction The crystal structures of bastnäsite-(Ce) and synchysite-(Ce) |  | | Journal (article/letter/editorial) | | [University of Southern Queensland] at 01:02 11 October 2014 Muzo District, Colombia Parisite-(Ce) crystals...analyses of Muzo material are consistent with parisite-(Ce). The specimen remains in the Rausch collection....Jeff Scovil. 3 Downloaded by [University of Southern Queensland] at 01:02 11 October 2014 t may never...identification of your particular specimen. Parisite-(Ce) is a vitreous to resinous brown, brownish-yellow...were very difficult to study. For years, parisite-(Ce) was believed to be hexagonal, with 5 m2 symmetry |  | | Journal (article/letter/editorial) | | 3749/canmin.1400012 AN UNUSUAL OCCURRENCE OF SYNCHYSITE-(Ce) IN AMYGDULES FROM THE ESTEREL VOLCANIC ROCKS...amygdules appear to be particularly enriched in synchysite-(Ce), developed as fibrous aggregates together...crystallize from the hydrothermal solution was synchysite-(Ce), whose REE pattern has strong similarities...host basalt. Keywords: rare-earth elements, synchysite-(Ce), basalt, alteration, amygdule, Esterel, France...the first time, to describe and characterize synchysite-(Ce) in this uncommon environment. GEOLOGICAL |  | | Journal (article/letter/editorial) | | are concentrated in the REE-fluorcarbonate synchysite-(Ce). Keywords: uranium mineralization; aceite;...aceite; coffinite; uraninite; thorite; synchysite; mineralogy; geochemistry; Bohemian Massif; Central European...Blatnásuite suiteoccurs occursininthe thesouthern southern and southwestern margin granodiorites and southwestern...occurring in the southern and southwestern the Central Bohemian plutonic complex. The in the southern and southwestern...and grains. The elemental abundances of Al, As, Ca, Ce, Cu, Cr, Dy, Er, F, Fe,Brno Gd, Ltd.La, (Brno, Czech |  | | Journal (article/letter/editorial) | | minerals Article Synchysite-(Ce) from Cinquevalli (Trento, Italy): Stacking Disorder and the Polytypism...January 2020 Abstract: Synchysite-(Ce) at Cinquevalli occurs as fine needles intergrown...oxidized chalcopyrite as major constituents. Synchysite-(Ce) [Ca1.00 (Ce0.43 La0.26 Nd0.17 Y0.07 Pr0.04...(OH)0.42 )], shows an overgrowth rim of bastnäsite-(Ce) [(Ce0.34 La0.25 Nd0.17 Pb0.07 C a0.06 Y0.06 Pr0...O3 (F0.75 (OH)0.25 )]. Unit cell refinement of synchysite (C2/c) and bastnäsite (P62c) led to a = 12.272(4) |  | | Journal (article/letter/editorial) | | features in the visible to short-wave infrared region (VIS-SWIR), however, a significant knowledge gap...bastnäsite samples, two parisite samples, and one synchysite sample from the visible into the short-wave infrared...carbonate radical differ between bastnäsite, synchysite, and parisite. Exploitable spectral differences...band at 2243 nm that separates bastnäsite from synchysite and parisite. Similarly, for bastnäsite a dominantly...absorption band located is at 1968 nm, while in synchysite and parisite it occurs at 1961 nm. Keywords: |  | Alles, Jonas, Ploch, Alexander-Maria, Schirmer, Thomas, Nolte, Nicole, Liessmann, Wilfried, Lehmann, Bernd (2019) Rare-earth-element enrichment in post-Variscan polymetallic vein systems of the Harz Mountains, Germany. Mineralium Deposita, 54 (2) 307-328 doi:10.1007/s00126-018-0847-8 | Journal (article/letter/editorial) | | to the occurrence of abundant micrometer-sized synchysite inclusions in calcite, identified via Raman spectroscopy...PAAS-normalized REE patterns with a Eu peak but without Ce or Y anomalies and with a steeply dipping HREE pattern...LA-ICPMS) identifies these patterns as dominated by synchysite-(Ce–Nd) with strong Eu enrichment in the weight...fractionation (La/Lu ~ 100, PAAS-normalized). The synchysite component in calcite gangue is detected in polymetallic... which seems to be a diagnostic feature of the region and suggests a large-scale Mesozoic fluid system |  | Ciobanu, Cristiana, Kontonikas-Charos, Alkis, Slattery, Ashley, Cook, Nigel, Wade, Benjamin, Ehrig, Kathy (2017) Short-Range Stacking Disorder in Mixed-Layer Compounds: A HAADF STEM Study of Bastnäsite-Parisite Intergrowths. Minerals, 7 (11) 227 doi:10.3390/min7110227 | Journal (article/letter/editorial) | | between B, BBS and BS types (B—bastnäsite, S—synchysite). An additional occurrence of an unnamed B2 S...of REE and other metals [4,14]. The bastnäsite-synchysite group (BSG) comprises REE-fluorocarbonates with...end-members bastnäsite (LnFCO3 ; B slab) and synchysite (LnFCO3 ·CaCO3 ; S slab) [15–17]. Fluorine is...structures [15,16,20]. Euhedral crystals of parisite-(Ce) showing syntaxial intergrowths between various polysomes...bastnäsite-synchysite group. Name Bastnäsite (B slab) Formula/Layer Types 1 * (after Ni et al. [17]) Ce(CO3 |  | | Journal (issue) | | Identify Emeralds Bastnäsite and Parisite from Malawi THE QUARTERLY JOURNAL OF THE GEMOLOGICAL INSTITUTE...geographic origin. 42 Bastnäsite-(Ce) and Parisite-(Ce) from Mt. Malosa, Malawi Alessandro Guastoni, David Kondo...and water vapor in air. The spectra in the mid-IR region were normalized based on the two-phonon absorptions...absorptions of diamond, and in the near-IR region based on its three-phonon absorptions. This allowed us to...very weak and sharp absorptions in the UVVis-NIR region at liquid nitrogen temperature. The sampling interval |  | | Journal (issue) | | Hilary, Cornwall 16:13 BETTERTON, J. (1996) Monazite-(Ce) from Croft Gothal mine, Cornwall 17:17 BETTERTON...19:24 malachite 19:24,27 pseudomalachite 19:24,27 Mount Cobalt adamite 11:12, 12:31 clinoclase 19:24 cobaltite...19:24 Mount Elliott Mine augite 19:28 calcite 19:28 goethite 19:28 gypsum 19:28 quartz 19:28 Mount Glorious...Glorious Mine, Cloncurry pseudomalachite 12:27 Mount Oxide Mine alunite 19:25 antlerite 19:25 asbolane 19:25...scorodite 19:12 sideronatrite 19:12 ITALY LIGURIA Mount Bregaceto brookite 16:12 peridot 16:10 indicolite |  | | Book | | named Monteregie is now the current name of the region. he name Mont Saint-Hilaire is used interchangeably...what is now the Richelieu River and Lake Champlain region, Samuel de Champlain first named the mountain Mont...protecting the only remaining primeval forest in the region. THE EARLY SCIENTIFIC INVESTIGATIONS T he earliest...research of other alkaline systems, most notably in southern Norway and southeastern Asia (Thailand, Cambodia)... from Mont Saint-Hilaire. The mineraljohnsenite-(Ce), a eudialyte-group species discovered at Mont Saint-Hilaire |  | | Catalog/List | | Taliskcr Bay, Skye, Scotland AEGIRINE Mount Malosa, Zomba District, Malawi 17 2 Rich mass of black crystal...lx2£3 1 .5cm£4 Ix! £1.50 ALBITE Maine US/\ ANCYLITE Ce Mt Yukspor, Kola Russia 963 20 variety CLEA VELANDITE...CRI STOBALITE 424 Vcchec, Slanskc Mtns, Presov Region, Slovakia 220 Rich coverage of dull grey micro...masses in matrix Fairly rich pinkish areas in Sycnite Ce Fc Mn Y Zr l x l 80p lx2 £ 1 .50 2x2 £3 2x3 £5 P...area, Pacific Occa 2 79 MOLYBDENITE Copiapo 1 1 I Region Chile Black-bro\\11 part section showing the interior |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...(Chamberlain and Robinson, 2013). MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the...discoveries in the famous alkaline pegmatites of Mount Malosa in the late 2000s include specimens showing...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during |  | | Journal (issue) | | The Colorado Quartz mine is situated within the southern end of the East Gold Belt, part of the Mother...was born in 1971 and grew up in the Napa Valley region of northern California. Before high school he had...in 1856 to build a railway between the Romandy region of Switzerland and Italy, 479 Figure 1. Topographic...of the Jura–Simplon Railway through the Simplon region from Brig to Domodossola. Military considerations...Heinrich Preiswerk mapped the geology of the Simplon region. From their studies the nappe concept (overriding |  | | Book | | in most of the placer deposits of eastern and southern Indian coasts. Monazite resource of 12.45 million...very low-grade Yttrium ore. The carbonatites of southern India offer scope for exploration of REE, dominated...speculated by AMD from Siwana ring complex. In southern India, peraluminous to peralkaline Kanigiri granite...Panchmahal District, Gujarat . . . . . . . . . 3.6 Southern India . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . 4.6 Southern India . . . . . . . . . . . . . . . . . . . . |
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