 | Macdonald, Ray, Bagiński, Bogusław, Belkin, Harvey E., Stachowicz, Marcin (2019) Composition, paragenesis, and alteration of the chevkinite group of minerals. American Mineralogist, 104 (3) 348-369 doi:10.2138/am-2019-6772 | Journal (article/letter/editorial) | | post-2009 data. The Cr- and Mn-analogs of chevkinite-(Ce), polyakovite, and christofschäferite, respectively...Ce4Fe2+Ti2Ti2(Si2O7)2O8 be named dingdaohengite-(Ce), a proposal accepted by the CNMNC-IMA. Should all...be renamed dingdaohengite? In the type perrierite-(Ce), from Nettuno, Italy, Al is dominant in the C site...perrierite. If it is assumed that A = Ca, Sr, Y, La, Ce, Nd, Th; B = Mg, Mn, Fe2+; C = Al, Ti, Cr, Fe2+,...by Macdonald et al. (2009) of the type perrierite-(Ce) from Nettuno gave the formula A4.1BC1.9D2.0(Si2O7)2O8 |  | | Journal (article/letter/editorial) | | Montana Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...2015 K NOWN AS THE TREASURE STATE, Montana is rich in mineral and gemstone localities. The state motto...The middle third of the state is known as the Montana alkali province where the sediments have MICHAEL...Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University... the Rocky Mountains, and furthest to the northwest, the belt basin. The Rocky Mountains contain sedimentary |  | Macdonald, R., Bagiński, B., Kartashov, P. M., Zozulya, D., Dzierżnowski, P. (2015) Hydrothermal alteration of chevkinite-group minerals. Part 2. Metasomatite from the Keivy massif, Kola Peninsula, Russia. Mineralogical Magazine, 79 (5) 1039-1059 doi:10.1180/minmag.2015.079.5.02 | Journal (article/letter/editorial) | | Associate Editor: K. Pfaff ] ABSTRACT Chevkinite-(Ce) in a mineralized quartz-epidote metasomatite from...of ferriallanite-(Ce) and davidite-(La), in turn rimmed by a zone of allanite-(Ce) richer in the epidote...postdating that of rutile. Aeschynite-(Y), aeschynite-(Ce) and REE-carbonates are accessory phases in all zones...minerals, davidite-(La), aeschynite(Y), aeschynite-(Ce), niobian titanite, rutile and REE-carbonates. Geological...CHEVKINITE FIG. 2. Colour photomicrograph of chevkinite-(Ce) crystals in 160b/62, showing the location of areas |  | | Journal (article/letter/editorial) | | wöhlerite, eudialyte groups, as well as loparite-(Ce), occur in accessory amounts in nepheline trachyte...Microscope (Thermo Fisher Scientific, Waltham, MA, USA) coupled with an INCA Energy 250 EDS microanalysis...microprobe (JEOL USA, Peabody, MA, USA) with five wavelength dispersive spectrometers (JEOL USA, Peabody, MA...MA, USA), also located at the Scientific and Technological Centres of the University of Barcelona. Operating...counting time was 10 s peak and 10 s background except for Ce, La, Ba (20 s peak and 20 s background), |  | Morgenstern, Regine, Turnbull, Rose E., Ashwell, Paul A., Horton, Travis W., Oze, Christopher (2019) Petrological and geochemical characteristics of REE mineralization in the A-type French Creek Granite, New Zealand. Mineralium Deposita, 54 (7) 935-958 doi:10.1007/s00126-018-0854-9 | Journal (article/letter/editorial) | | by hydrothermal fluids. The REE are hosted in bastnäsite group minerals, monazite, xenotime, and zircon...metasomatism . Petrogenesis . French Creek Granite . Bastnäsite Introduction Editorial handling: R. Linnen Electronic...College, 1600 Campus Road, Los Angeles, CA 90041, USA Rare earth elements (REE) are a fundamental component...prospective^ for REE-Nb mineralization. The highest La + Ce + Y found in pan concentrate samples was 4633 ppm...dating Optical petrology In situ zircon and bastnäsite [(Ce,La)(CO3)F] from polished sections were analyzed |
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