 | Andrade, M. B., Atencio, D., Filho, L. A. D. M., Ellena, J. (2011) TThe structure of a microlite-group mineral with a formula near NaCaTa2O6F from the Morro Rendondo Mine, Coronel Murta, Minas Gerais. The Canadian Mineralogist, 49 (2) 615-621 doi:10.3749/canmin.49.2.615 | Journal (article/letter/editorial) | | 3749/canmin.49.2.615 THE CRYSTAL STRUCTURE OF A MICROLITE-GROUP MINERAL WITH A FORMULA NEAR NaCaTa2O6F FROM...single-crystal X-ray-diffraction data for a microlite-group mineral with a formula near NaCaTa2O6F from...75(OH)0.25]S6.00 Y(F0.73î0.27)S1.00. According to the new nomenclature for the pyrochlore-supergroup minerals...of these data is presented here. Keywords: microlite group, âfluorcalciomicroliteâ, fluornatromicrolite...monocristal pour caractĂ©riser un minĂ©ral du groupe du microlite ayant une formule voisine de NaCaTa2O6F, provenant |  | Loun, Jan, NovĂĄk, Milan, CempĂrek, Jan, Ć koda, Radek, VaĆĄinovĂĄ GaliovĂĄ, Michaela, ProkeĆĄ, LubomĂr, Dosbaba, Marek, ÄopjakovĂĄ, Renata (2018) Geochemistry and secondary alterations of microlite from eluvial deposits in the Numbi mining area, South Kivu, Democratic Republic of the Congo. The Canadian Mineralogist, 56 (2) 203-220 doi:10.3749/canmin.1700091 | Journal (article/letter/editorial) | | 1700091 GEOCHEMISTRY AND SECONDARY ALTERATIONS OF MICROLITE FROM ELUVIAL DEPOSITS IN THE NUMBI MINING AREA...37 Brno, Czech Republic ABSTRACT Microlite and U-enriched microlite were found in eluvium close to highly...cassiterite . microlite-group minerals (microlite ĂŸ U-enriched microlite) . columbite-group minerals (columbiteâtantalite)...Misumari II pegmatite (berylcolumbite subtype) microlite . cassiterite, columbiteâtantalite ĂŸ wodginiteâferrowodginite...rather low. Fragments of primary microlite and U-enriched microlite (the latter present only at the Mungwe |  | Galliski, Miguel Ăngel, MĂĄrquez-ZavalĂa, MarĂa Florencia, Ć koda, Radek, NovĂĄk, Milan, ÄopjakovĂĄ, Renata, Pagano, Diego SebastiĂĄn (2019) A Ta,Tiârich oxide mineral assemblage from the Nancy berylâcolumbiteâphosphate granitic pegmatite, San Luis, Argentina. Mineralogy and Petrology, 113 (5) 687-701 doi:10.1007/s00710-019-00673-z | Journal (article/letter/editorial) | | Keywords Tantalite-(Mn) . Tantalian rutile . Wodginite-group minerals . Hydroxycalciomicrolite . Rare-element...columbite-group minerals, wodginite-group minerals, niobian or tantalian rutile and pyrochlore-group minerals...ferrotitanowodginite, tantalian rutile and microlite-group minerals that occurs in a LCT rare-element...consists of a UP 213 laser-ablation system (New Wave, USA) and an Agilent 7500 CE ICPâMS spectrometer...d g i n i t e , ferrotitanowodginite, and microlite-group minerals. The textural relationships, evidenced |  | Andrade, M. B., Atencio, D., Chukanov, N. V., Ellena, J. (2013) Hydrokenomicrolite, (â,H2O)2Ta2(O,OH)6(H2O), a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil. American Mineralogist, 98 (2) 292-296 doi:10.2138/am.2013.4186 | Journal (article/letter/editorial) | | Hydrokenomicrolite, (o,H2O)2Ta2(O,OH)6(H2O), a new microlite-group mineral from Volta Grande pegmatite, Nazareno...OH)6(H2O) or ideally o 2Ta2[O4(OH)2](H2O), is a new microlite-group mineral approved by the CNMNC (IMA 2011-103)... zircon, âtourmalineâ, bityite, and other microlite-group minerals under study. Hydrokenomicrolite occurs...dominance at the B site. Keywords: Hydrokenomicrolite, new mineral, Volta Grande pegmatite, Nazareno, Minas...Minas Gerais, Brazil, pyrochlore supergroup, microlite group, crystal structure Introduction Hydrokenomicrolite |  | | Journal (issue) | | camps. (Bolivia was then officially allied with the USA, although this was opposed by some political factions...remember very well that none of us was thinking of new species, and that you only asked me whether that...Herzenberg missed the opportunity to describe yet another new species!) NB 3) The loose green crystal is something...never met Henry face-to-face. He lived in Shushan, New York. He did send me a copy of his book. I found it...mine, and just about 6 miles SE of Yerington, a new property is currently under development by Nevada |  | Hamid, Sarbast, Alfonso, Pura, Anticoi, Hernan, Guasch, Eduard, Oliva, Josep, Dosbaba, Marek, Garcia-Valles, Maite, Chugunova, Marina (2018) Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore. Minerals, 8 (4) 151 doi:10.3390/min8040151 | Journal (article/letter/editorial) | | columbite-(Mn) and tantalite-(Mn), as well as minor microlite and wodginite. The liberation in the product is...fraction of less than 250 ”m (51â52 wt % for columbite-group minerals (CGM) and 74â80 wt % for cassiterite) and...for other elements. The formulas for columbite-group minerals (CGM) were calculated on the basis of 24...obtained from HPGR and BM were analyzed using a new generation of the Tescan Integrated Mineralogical...Nb and Ta occur mainly in minerals of CGM. This group is constituted by a solid solution of columbite |  | | Journal (issue) | | Carmel Veterans Center Article - M. Nelson, Microlite: Are You Confused? I Am! Thursday, December 16...Pick & Pack 1 CSMS Group Calendar Dec â21 Jan â22 7 Dec 4 Jan Fossil Group 1st Tues 7:00 PM TBD...John Massie 719-338-4276 23 Dec 27 Jan Crystal Group 4th Thur 7:00 PM Mt. Carmel Center Kevin Witte...Witte 719-638-7919 By appt By appt Faceting Group By appt By appt Bertaâs House John Massie 719-338-4276...719-338-4276 By appt By appt Lapidary Group By appt By appt Sharonâs House Sharon Holte 719-217-5683 |  | | Journal (article/letter/editorial) | | xenotime-(Y), samarskite-(Y), fergusonite-(Y), microlite, phenakite, topaz, genthelvite, danalite, chlorite... thorite, niobian rutile, pyrochlore- and microlite-group minerals, rutile, monazite-(Ce), sulfides,...for some minerals to be dissolved or replaced as new ones were deposited from the fluid phase. 228 ROCKS...individual crystals within pegmatite pockets. The mica group consists of the biotite series: annite, KFe32+(AlSi3O10)(OH... KAl2(AlSi3O10)(OH)2, is also part of the mica group. In the Stove Mountain area, micas in miarolitic |  | Kolitsch, Uwe, Kristiansen, Roy, Raade, Gunnar, Tillmanns, Ekkehart (2010) Heftetjernite, a new scandium mineral from the Heftetjern pegmatite, Tordal, Norway. European Journal of Mineralogy, 22 (2) 309-316 doi:10.1127/0935-1221/2010/0022-1987 | Journal (article/letter/editorial) | | 309â316 Published online March 2010 Heftetjernite, a new scandium mineral from the Heftetjern pegmatite, TĂžrdal...Austria Abstract: Heftetjernite, ideally ScTaO4, is a new scandium mineral from the Heftetjern pegmatite, TĂžrdal...dark greyish brown mineral of the pyrochlore-microlite group, and an unidentified, orange-brown, tabular...crystallises in the wolframite structure type, with space group P2/c and a ÂŒ 4.784(1), b ÂŒ 5.693(1), c ÂŒ 5.120(1)...to Sc-bearing ixiolite. Key-words: heftetjernite, new mineral, scandium tantalate, crystal structure, chemical |  | Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673 | Journal (article/letter/editorial) | | pereulok 35, 109017, Moscow, Russia Abstract A new scheme of nomenclature for the pyrochlore supergroup...has been referred to until now as the pyrochlore group should be referred to as the pyrochlore supergroup...are pyrochlore, microlite, romĂ©ite, betafite, and elsmoreite, respectively. The new names are composed...and one root name (identical to the name of the group). The first prefix refers to the dominant anion...nomenclature, pyrochlore group, microlite group, betafite group, romĂ©ite group, elsmoreite group. Sommaire Nous |  | | Journal (article/letter/editorial) | | Mineralogist, Volume 100, pages 2352â2362, 2015 New Mineral Names*,â Dmitriy I. Belakovskiy1, Fernando...Australia 1 In this issue This New Mineral Names has entries for 18 new minerals, including aluminopyracmonite...Campostrini (2013) Aluminopyracmonite, (NH4)3Al(SO4)3, a new ammonium aluminium sulfate from La Fossa crater,...Aluminopyracmonite (IMA 2012-075), ideally (NH4)3Al(SO4)3, is a new mineral from La Fossa crater, Vulcano, Aeolian Islands...30 Ă 20 ÎŒm shows the mineral is trigonal, space group R3; a = 15.0324(8), c = 8.8776(5) Ă
, V = 1737.3 |  | ÄernĂœ, P., Teertstra, D. K., Chapman, R., Selway, J. B., Hawthorne, F. C., Ferreira, K., Chackowsky, L. E., Wang, X.-J., Meintzer, R. E. (2012) Extreme fractionation and deformation of the leucogranite-pegmatite suite at Red Cross Lake, Manitoba, Canada. IV. Mineralogy. The Canadian Mineralogist, 50 (6) 1839-1875 doi:10.3749/canmin.50.6.1839 | Journal (article/letter/editorial) | | pegmatite, KâRb feldspars, KâRbâCs micas, garnet group, tourmaline supergroup, pollucite, tantalite-(Mn)...Present address: 7728 Wood Stork Court, Albuquerque, New Mexico 87114, U.S.A. Present address: Caracle Creek...analcimeâpollucite), Uher & ÄernĂœ (1998, zircon group), Smeds et al. (1998, lithiophilite, apatite, amblygonite...and 9.0 for phlogopite). Compositions of the microlite-group minerals are all recast into atomic contents...evolutionary trends, each mineral species, series or group is dealt with under a single heading for phases |  | | Journal (article/letter/editorial) | | resulted in increased ÂŻuorine activity (as seen in microlite compositions) and that in situ fractionation of...gleichbleibendem Mn. Introduction Columbite-tantalite group minerals are ubiquitous in beryl-, complex-, albitespodumene-...(CĂernyĂ et al., 1985). The columbite-tantalite group minerals are therefore important in deciphering...of columbite-tantalite group minerals from the Separation Rapids pegmatite group in N.W. Ontario ± a suite...Geological setting The Separation Rapids pegmatite group and the pluton with which it is associated lie almost |  | | Journal (article/letter/editorial) | | and Environmental Sciences, University of New Orleans, New Orleans, Louisiana 70148, U.S.A. Thomas W...and Environmental Sciences, University of New Orleans, New Orleans, Louisiana 70148, U.S.A. Abstract...pyrochloregroup species are abundant. Columbite-group species are scarce, and fluorite is common. Zircon...monazite-group minerals, xenotime-(Y), bastnĂ€site-group species, and numerous pyrochlore-group minerals...species such as tantalite-(Mn), tapiolite(Fe) and microlite. The solid pegmatite around the small cavities |  | | Journal (article/letter/editorial) | | Gait, Royal Ontario Museum; Dr. William Kelly, New York State Geological Survey; Dr. Robert Kmg, Tewksbury...THE HYATT MINE, TALCVILLE, ST. LAWRENCE COUNTY, NEW YORK. S. C. Chamberlain, Department of Bioengineering...13244-5290. The Zinc Corporation of America operates the new Hyatt mine on an orebody just south of the Oswegatchie...Talcville in the Town of Edwards, St. Lawrence County, New York. The orebody consists of massive iron-rich sphalerite...sulfates), many of which are rare and three of which are new minerals. Many of these occur as well-formed crystals |  | | Journal (issue) | | leaching operation resulted in the discovery of a new post mining mineral, alpersite, (Mg,Cu)SO 4 âą 7H...EDS detector, the lab has uncovered a number of new species, as well as surprises at both ends of the...3935;ExcaliburMineralCorp specimenand image. 6 Mineral News New Mineral Names As a serviceto collectors,we willp...Acbalaite - Fe2 -,,iNb 2O8 This is a new mineral of the wodginite group from the La Calandria granitic pegrnatite...exsolutions of Ta-rich rutile and intergrown with microlite-group minerals. Achalaite has a black color and streak |  | Melcher, Frank, Graupner, Torsten, GĂ€bler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, OberthĂŒr, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalumâ(niobiumâtin) mineralisation in African pegmatites and rare metal granites: Constraints from TaâNb oxide mineralogy, geochemistry and UâPb geochronology. Ore Geology Reviews, 64. 667-719 doi:10.1016/j.oregeorev.2013.09.003 | Journal (article/letter/editorial) | | granitic rare-element IP pegmatites. Columbite-group minerals (CGM) account for the majority of the current...rare-element pegmatites (ÄernĂœ et al., 2005). Columbite-group minerals (columbite-tantalite solid solution series;...members of the orthorhombic columbite-tantalite group (CGM) with the general formula AB2O6 (A = Fe2+,...and Nb > Ta, and the microlite subgroup with (Nb+Ta) > 2 Ti and Nb < Ta. The new nomenclature approved...pyrochlore (Nb), microlite (Ta), romĂ©ite (Sb), betafite (Ti), and elsmoreite (W). The new names are composed |  | | Journal (article/letter/editorial) | | Pyrochlore was the second mineral to be described as a new species from the alkaline pegmatites of the Larvik...pegmatites in ring sections 9 and 10; perovskite-group minerals are the common Nb-oxide phase. t. ':::...applied to each specimen in accordance with the new pyrochlore supergroup nomenclature proposed by the...Lo), hematite (Fe Ko), celestine (Sr Lp, S Ko), microlite (F Ko, Na Ko), cassiterite (Sn Lo), synthetic...species. - 65 Five groups are recognized under the new nomenclature based on the dominant cation at the |  | | Journal (article/letter/editorial) | | hematite, goethite and minerals of the crandallite group. The different styles of mineralization of primary...evaluated [e.g. Aley and Upper Fir (Canada); Elk Creek (USA)] or re-evaluated [e.g. Oka (Canada); Fen (Norway);...sensu latoâ can found in association with either group (see below), and some carbonatites have no discernible...produced from loparite, a Nb-REE-bearing perovskite group mineral. 2. Aspects of niobium geochemistry The...rutile, ixiolite, wodginite, and columbiteâtantalite group minerals. The LCT-granites, and columbiteâtantalite |  | | Book | | published by Springer-Verlag Berlin Heidelberg New York 1989 Softcover reprint of the bardeover 1st edition...it is a matter of the industry's survival to seek new commodities that are in high demand. The lanthanides...minerals from Ytterby, Sweden and Kimito, Finland. The new "element" was named after the Greek mythologieal...ehernist Hatehett isolated an element in minerals from New London, Conneetieut and ealled it "eolumbium". However...(with 21 Figures) . . . . . . 3 27 Pyrochlore Group Minerals from the Qaqarssuk Carbonatite Complex |  | | Journal (article/letter/editorial) | | minerals Article RomĂ©ite-Group Minerals Review: New Crystal Chemical and Raman Data of FluorcalcioromĂ©ite...D.; Ellena, J.; Andrade, M.B. RomĂ©ite-Group Minerals Review: New Crystal Chemical and Raman Data of FluorcalcioromĂ©ite...Correspondence: mabadean@usp.br Abstract: The romĂ©ite-group is part of the pyrochlore-supergroup and comprises...the group and are important for the discovery of new mineral species. Two different romĂ©ite-group mineral...samples belong to the cubic crystal system, space group Fd3m, Z = 8, where a = 10.2881(13) Ă
, V = 1088.9(4) |  | Gonçalves, , Melgarejo, , Alfonso, , Amores, , Paniagua, , Neto, , Morais, , CamprubĂ, (2019) The Distribution of Rare Metals in the LCT Pegmatites from the GiraĂșl Field, Angola. Minerals, 9 (10) 580 doi:10.3390/min9100580 | Journal (article/letter/editorial) | | Pb, Sb and Bi. Keywords: pegmatites; columbite-group minerals; pyrochlore supergroup; niobium; tantalum;...from both economic and scientific point of view. New technologies, especially those for the manufacture...exception of some scarce crystals of the columbite-group minerals (CGM) and They have variable dimensions...detail some slightly more evolved pegmatites of the group, where fine albite veins appear and replacement...exception of someinscarce crystals of theascolumbite-group minerals and rareand elements. Other common minerals |  | | Journal (article/letter/editorial) | | and micromounter by preference, discovered eight new mineral species, one of which, ruizite, Ca2Mn23+...society dinners with his wife, Billie; mentored new micromounters; used his chemical background to write...normal meeting place to a new location in the Learning Depot area. The new venue had no integral audio...Walstrom spoke on New Mineral Discoveries from the Victoria Mountains Skarn, Luna County, New Mexico. By the...Field Discovery to a New Mineral. Tony has himself described over two hundred new minerals during his |  | | Thesis/Dissertation | | identify Be minerals, such as beryl, gadolinite group minerals, and bazzite, and their Be concentrations...field, comprise worldwide the most common chemical group of pegmatites (Segalstad and Eggleston, 1993). Therefore...tourmaline, amblygonite, columbite group minerals, hambergite, cassiterite, microlite, and topaz for the LCT family...in the area (Juve and BergstĂžl, 1997). However, new age by Rosing-Schow et al. (2019) showed that the...Ginsburgâs et al. (1979) four classes, they introduced a new class, known as muscovite-rare-element class (ÄernĂœ |  | | Thesis/Dissertation | | 5 Tourmaline from the Little Three pegmatites, USA (Maner & London, 2017). 6 Seawater (Foster et al...International Mineralogy Associationâs Commission on New Minerals, Nomenclature and Classification IMF â Initial...and the Oxford County pegmatite field in Maine, USA (e.g., Simmons et al., 2005a). It is important to...mainly rhombohedral, isostructural in the space group R3m. Although, some studies report tourmalines,...Williams et al., 2010). The structure of tourmaline-group minerals consists of six-membered rings of TO4 tetrahedra |
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