| 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...2015; 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, barite...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...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...thorite, lead, galena, fluorite, xenotime(Y), gagarinite-(Y), fluocerite-(Ce), genthelvite-helvite, topaz...UPb-rich pyrochlore-group mineral, and xenotime-(Y), respectively. Zircon crystallization, inhibited... forming concentrations, together with xenotime-(Y) and polythionite, in pegmatitic zones. Yttrium and | | 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...allanite-(Ce), titanite, the REE fluorocarbonates and waimirite-(Y) are probably more susceptible to weathering...weathering, whereas zircon, monazite-(Ce) and xenotime-(Y) are resistant to weathering. Ion-exchangeable REE in...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 | | | Journal (article/letter/editorial) | of the oskarssonite subgroup [oskarssonite, waimirite-(Y)]; (5) B-site vacant inverse single perovskites...quadruple perovskites of the hematophanite subgroup. K E Y WO R D S : perovskite, group theory, ordered perovskites...axes of the pseudocubic precursor cubic cell (x, y and z), so as 414 to achieve the lowest energy mode...general case of unequal rotation angles about the x, y and z axes, the rotation scheme is denoted as a, b...rotation about x, y and z with consecutive octahedra along the same axis (i.e. x, y or z) rotating in |
|