| | Report (issue) | Mineralogy of the microgranite at Jabal Tawlah, Kingdom of Saudi Arabia by I/ I/ Mortimer H. Staatz and...Resources, Deputy Ministry for Mineral Resources, Saudi Arabia This report is preliminary and has not been... Locality of Jabal Tawlah ....................... 3 2. Autoradiograph of Jabal Tawlah rock samples...Minerals identified in mineral separates from Jabal Tawlah ............................... 6 3. Electron...Electron microprobe analysis of zircon from Jabal Tawlah .................................... 12 4. Partial | | Atencio, Daniel, Bastos Neto, Artur C., Pereira, Vitor P., Ferron, José T. M. M., Hoshino, M., Moriyama, T., Watanabe, Y., Miyawaki, R., Coutinho, José M. V., Andrade, Marcelo B., Domanik, Kenneth, Chukanov, Nikita V., Momma, K., Hirano, H., Tsunematsu, M. (2015) Waimirite-(Y), orthorhombic YF3, a new mineral from the Pitinga mine, Presidente Figueiredo, Amazonas, Brazil and from Jabal Tawlah, Saudi Arabia: description and crystal structure. Mineralogical Magazine, 79 (3) 767-780 doi:10.1180/minmag.2015.079.3.18 | Journal (article/letter/editorial) | Magazine, June 2015, Vol. 79(3), pp. 767–780 Waimirite-(Y), orthorhombic YF3, a new mineral from the Pitinga...Figueiredo, Amazonas, Brazil and from Jabal Tawlah, Saudi Arabia: description and crystal structure DANIEL...JOSÉ T. M. M. FERRON3, M. HOSHINO4, T. MORIYAMA4, Y. WATANABE4, R. MIYAWAKI5, JOSÉ M. V. COUTINHO1, MARCELO...Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia [Received 12 August 2014; Accepted...Associate Editor: D. Hibbs] ABSTRACT Waimirite-(Y) (IMA 2013-108), orthorhombic YF3, occurs associated | | | Report (issue) | YF3 Waimirite-(Y) Crystal Data: Orthorhombic. Point Group: 2/m 2/m 2/m. Bladed crystals display {101... 1.937 (33), 1.862 (27), 3.707 (26) Chemistry: F Y La Ce Pr Nd Sm Gd Tb (1) 29.27 37.25 0.19 0.30 0...54 0.25O0.21]Σ=3.00. (2) Jabal Tawlah (Mount Tawlah), Kingdom of Saudi Arabia; average of 24 electron...zircon, thorite, xenotime-(Y), samarskite-(Y), ilmenite, euxenite-(Y), fergusonite-(Y), rutile, illite...illite, barite, calcite, goethite (Saudi Arabia); halloysite, albite, quartz, riebeckite, muscovite, cryolite | | | Journal (article/letter/editorial) | new minerals, including alfredopetrovite, bussyite-(Y), colinowensite, esquireite, ferromerrillite, fluornatropyrochlore...fluor-schorl, hogarthite, shilovite, tapiaite, waimirite-(Y). Alfredopetrovite* A.R. Kampf, S.J. Mills, B.P....Australia. D.B. Bussyite-(Y)* J.D. Grice, R. Rowe and G. Poirier (2015) Bussyite-(Y), a new beryllium silicate...Mineralogist, 53(2), 235–248. Bussyite-(Y) (IMA 2014-060), (Y,REE,Ca)3(Na,Ca)6MnSi9Be5 (O,OH,F)34, is...include microcline, sérandite, calcite, cappelenite-(Y), catapleiite, charmarite-2H and -3T, fluorite, helvine | | Atencio, Daniel, Andrade, Marcelo B., Bastos Neto, Artur C., Pereira, Vitor P. (2017) Ralstonite Renamed Hydrokenoralstonite, Coulsellite Renamed Fluornatrocoulsellite, and Their Incorporation Into the Pyrochlore Supergroup. The Canadian Mineralogist, 55 (1) 115-120 doi:10.3749/canmin.1600056 | Journal (article/letter/editorial) | cation) of the dominant valence [or H2O or A] at the Y site. The second prefix refers to the dominant § ...corresponds to the Madeira world-class Sn-Nb-Ta (Y, REE, F, Zr, Li, and Th) deposit, with 130 million...‘‘columbite’’, thorite, lead, galena, fluorite, xenotime(Y), gagarinite-(Y), fluocerite-(Ce), genthelvite-helvite...cassiterite, a UPb-rich pyrochlore-group mineral, and xenotime-(Y), respectively. Zircon crystallization, inhibited...crystallization, forming concentrations, together with xenotime-(Y) and polythionite, in pegmatitic zones. Yttrium | | Sanematsu, Kenzo, Ejima, Terumi, Kon, Yoshiaki, Manaka, Takayuki, Zaw, Khin, Morita, Sayaka, Seo, Yuna (2016) Fractionation of rare-earth elements during magmatic differentiation and weathering of calc-alkaline granites in southern Myanmar. Mineralogical Magazine, 80 (1) 77-102 doi:10.1180/minmag.2016.080.053 | Journal (article/letter/editorial) | synchysite(Y), parisite-(Ce), bastnäsite-(Ce), xenotime-(Y), monazite-(Ce), Y-Ca silicate, waimirite-(Y) and...waimirite-(Y) are probably more susceptible to weathering, whereas zircon, monazite-(Ce) and xenotime-(Y) are...products or that HREE remain in residual minerals. K E Y WO R D S : rare-earth element fractionation, granite...REE (HREE: Y and Gd to Lu) in the ores, because HREE are less abundant in the crust except Y compared to...progressive decrease in ionic radii from La to Lu through Y (Henderson, 1984; Green, 1994; Tiepolo et al., 2002; | | | Journal (article/letter/editorial) | their parent bodies are same or located in the same region [1]. However, an origin and formation histories...across the ultrahigh-pressure (UHP) Western Gneiss Region of Norway to understand deformation and metamorphism...of Chemistry, UCSD, La Jolla, USA 1 The source region of the extensive magmatism driving the East Africa...(1517mm/yr) and present extremely low melting rates. This region is therefore a favorable location to study the...geochemical variability. Previous study of this region have documented an atypical radiogenic *Hf values |
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