DOCSLIB.ORG

O, a New Mineral of the Titanite Group from the Piława Górna Pegmatite, the Góry Sowie Block, Southwestern Poland

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
O, a New Mineral of the Titanite Group from the Piława Górna Pegmatite, the Góry Sowie Block, Southwestern Poland Mineralogical Magazine, June 2017, Vol. 81(3), pp. 591–610 Żabińskiite, ideally Ca(Al0.5Ta 0.5)(SiO4)O, a new mineral of the titanite group from the Piława Górna pegmatite, the Góry Sowie Block, southwestern Poland 1,* 2 3 3 4 ADAM PIECZKA ,FRANK C. HAWTHORNE ,CHI MA ,GEORGE R. ROSSMAN ,ELIGIUSZ SZEŁĘG , 5 5 6 6 7 ADAM SZUSZKIEWICZ ,KRZYSZTOF TURNIAK ,KRZYSZTOF NEJBERT ,SŁAWOMIR S. ILNICKI ,PHILIPPE BUFFAT AND 7 BOGDAN RUTKOWSKI 1 AGH University of Science and Technology, Department of Mineralogy, Petrography and Geochemistry, 30-059 Kraków, Mickiewicza 30, Poland 2 Department of Geological Sciences, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada 3 Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, 91125-2500, California, USA 4 University of Silesia, Faculty of Earth Sciences, Department of Geochemistry, Mineralogy and Petrography, 41-200 Sosnowiec, Bedzin̨ ská 60, Poland 5 University of Wrocław, Institute of Geological Sciences, 50-204 Wrocław, M. Borna 9, Poland 6 University of Warsaw, Faculty of Geology, Institute of Geochemistry, Mineralogy and Petrology, 02-089 Warszawa, Żwirki and Wigury 93, Poland 7 AGH University of Science and Technology, International Centre of Electron Microscopy for Materials Science, Department of Physical and Powder Metallurgy, 30-059 Kraków, Mickiewicza 30, Poland [Received 7 January 2016; Accepted 21 April 2016; Associate Editor: Ed Grew] ABSTRACT Ż ́ ł abinskiite, ideally Ca(Al0.5Ta0.5)(SiO4)O, was found in a Variscan granitic pegmatite at Pi awa Górna, Lower Silesia, SW Poland. The mineral occurs along with (Al,Ta,Nb)- and (Al,F)-bearing titanites, a pyrochlore-supergroup mineral and a K-mica in compositionally inhomogeneous aggregates, ∼120 μm× 70 μm in size, in a fractured crystal of zircon intergrown with polycrase-(Y) and euxenite-(Y). Żabinskiité is transparent, brittle, brownish, with a white streak, vitreous lustre and a Mohs hardness of ∼5. The calculated density for the refined crystal is equal to 3.897 g cm–3, but depends strongly on composition. The mineral is non-pleochroic, biaxial (–), with mean refractive indices ≥1.89. The (Al,Ta,Nb)-richest żabinskiité crystal, 3þ (Ca0.980Na0.015)Σ=0.995(Al0.340Fe0:029Ti0.298V0.001Zr0.001Sn0.005Ta0.251Nb0.081)Σ=1.005[(Si0.988Al0.012)O4.946 F0.047(OH)0.007)Σ=5.000]; 60.7 mol.% Ca[Al0.5(Ta,Nb)0.5](SiO4)O; is close in composition to previously described synthetic material. Żabinskiité is triclinic (space group symmetry A1) and has unit-cell parameters a = 7.031(2) Å, b = 8.692(2) Å, c = 6.561(2) Å, α = 89.712(11)°, β = 113.830(13)°, γ = 90.352(12)° and V = 366.77 (11) Å3. It is isostructural with triclinic titanite and bond-topologically identical with titanite and other minerals of the titanite group. Żabinskiité crystallized along with (Al,Ta,Nb)-bearing titanites at increasing Ti and Nb, and decreasing Ta activities, almost coevally with polycrase-(Y) and euxenite-(Y) from Ca-contaminated fluxed melts or early hydrothermal fluids. K EYWORDS: żabinskiite,́ titanite group, new mineral species, optical data, electron microprobe, crystal structure, NYF pegmatite, Piława Górna, Sudetes, Poland. Introduction (7) (6) (4) THE titanite group, X Y (TO4)O, currently (7) (6) *E-mail: [email protected] comprises five mineral species: titanite, Ca Ti (7) (6) https://doi.org/10.1180/minmag.2016.080.110 (SiO4)O (grandfathered); malayaite, Ca Sn © 2017 The Mineralogical Society ADAM PIECZKA ET AL. 5+ 5+ 4+ (SiO4)O (Alexander and Flinter, 1965; Higgins and presence of Nb and Ta , substituting for Ti at (7) (6) 4+ Ribbe, 1977); vanadomalayaite, Ca V (SiO4)O the Y site, is either balanced by coupled 3-valent (7) (6) 3+ 3+ (Basso et al., 1994); natrotitanite, (Na0.5Y0.5) Ti cations (Al and Fe ), or is the result of an ż ́ 2+ + (SiO4)O (Stepanov et al., 2012); and abinskiite, additional coupled replacement of Ca by Na at (7) (6) 3+ 4+ Ca (Al0.5Ta0.5)(SiO4)O, which was approved the X site, or Al for Si at the T site. To date, the recently by the Commission on New Minerals, most Ta- and Nb-enriched titanite is from Maršíkov Nomenclature and Classification of the II pegmatite in northern Moravia, Czech Republic International Mineralogical Association (IMA (Černý et al., 1995). It contains up to 21.53 wt.% CNMNC) (Pieczka et al., 2015b; IMA 2015- Ta2O5 (0.216 Ta atoms per formula unit, apfu) and 033). Titanite is a common accessory mineral in up to 9.49 wt.% Nb2O5 (0.163 Nb apfu), with the intermediate, felsic and alkaline plutonic rocks highest Nb + Ta content (Nb < Ta) equal to (diorites, granodiorites, granites, syenites, nephel- 0.278 apfu in the Na-poor variety and 0.359 apfu ine syenites, carbonatites, phoscorites, etc.) and in the Na-bearing variety. However, due to their volcanic analogues, pegmatites, hydrothermal simultaneous substitutions at the X and Y sites veins, alpine-type veins, gneisses, schists, skarns and possible vacancy at the T site, none of these and marbles; malayaite is an early hydrothermal titanite varieties corresponds to a Ta-dominant product, which may associate with a cassiterite– species (Černý et al., 1995). Liferovich and quartz assemblage, and a component of Sn-bearing Mitchell (2006a) synthesized a high-(Al,Ta) ana- skarns. Vanadomalayaite and natrotitanite are two logue of titanite with composition Ca extremely rare members of the group, each known (Ti0.4Al0.3Ta0.3)SiO4O and concluded that solid from only one occurrence: in a manganese ore solution involving the smaller cations might be deposit exploited by the Valgraveglia (Gambatesa) stabilized at high pressure, suggesting the existence Mine, Genova Province, Italy (Basso et al., 1994) of a potentially new compound with ≥ 67 mol.% and the Verkhnee Espe rare-element deposit, Ca(Al0.5Ta0.5)SiO4O end-member. Other experi- Eastern Kazakhstan Province, Kazakhstan mental data (ibidem) indicated that a titanite (Stepanov et al., 2012), respectively. analogue with more than 50 mol.% of a Igneous titanite does not usually show extensive NaTaSiO4O end-member is unlikely to exist. substitution and its composition is close to the end- In this paper, we describe żabinskiité (pronun- member. As titanite crystallizes, it can incorporate ciation: zhabiɲskiit), a new mineral of the titanite various cations substituting for Ca2+ (Na+,Sr2+, group with dominance of 2Y(Ta + Nb) over YTi and Mn2+ and Y3++Ln3+)orTi4+ (Al3+,Fe3+,Sb3+,Sn4+, Ta >> Nb, as a result of the substitution (Ta,Nb)5+ + 4+ 4+ 5+ 5+ Č 3+ → Y 4+ Zr ,V ,Nb and Ta ) (Sahama, 1946; erný Al 2 Ti , containing up to 24.85 wt.% Ta2O5 and Riva di Sanseverino, 1972; Clark, 1974; (0.260 Ta apfu) and up to 8.02 wt.% Nb2O5 (0.127 Higgins and Ribbe, 1976; Paul et al., 1981; Nb apfu), and the highest Ta + Nb content of Hollabaugh and Foit, 1984; Sawka et al., 1984; 0.344 apfu yet recorded. Żabinskiité was discov- Groat et al., 1985; Bernau and Franz, 1987; ered in weakly fractionated parts of the Julianna Woolley et al., 1992; Basso et al., 1994; Russell system of anatectic pegmatites at Piława Górna, the et al., 1994; Černý et al., 1995; Della Ventura et al., Góry Sowie Block, Lower Silesia, SW Poland. 1999; Markl and Piazolo, 1999; Tiepolo et al., Żabinskiité has been approved by the IMA 2002; Chakhmouradian and Zaitsev, 2002; CNMNC (proposal IMA 2015-033). The mineral Chakhmouradian et al., 2003; Chakhmouradian, is named to honour the late Professor Witold 2004; Houzar et al., 2008; Cempírek et al., 2008; Żabinskí (1929–2007) – one of the most eminent Lussier et al., 2009; Stepanov et al., 2012). Polish mineralogists and one of the founders of the Niobium and Ta are relatively common subordinate Mineralogical Society of Poland and its President in substituents at the Y site of the titanite structure. 1980–1994. The żabinskiité holotype (P37 speci- However, titanites with a substantial amount of men) is preserved at the Mineralogical Museum of these elements are uncommon. Generally, Nb- the University of Wrocław, in the form of one enriched titanites are associated with nepheline polished, 1-inch in diameter, disc with the syenites and carbonatites (e.g. Woolley et al., 1992; catalogue number MMWr IV7675. Żabinskiité is Chakhmouradian et al., 2003; Chakhmouradian, isostructural with triclinic titanite (Lussier et al., 2004), whereas tantalian titanite, usually also 2009) and is bond-topologically identical with enriched in Nb, is known from granitic pegmatites other members of the titanite group. Żabinskiité (e.g. Clark, 1974; Paul et al., 1981; Groat et al., classifies in the class 9.AG.15 (Nesosilicates with 1985; Černý et al., 1995; Uher et al., 1998). The additional anions; cations in > [6] ± [6] coordination) 592 ŻABIŃSKIITE, NEW TITANITE-GROUP MINERAL FROM PIŁAWA GÓRNA, POLAND in the classification of Strunz and Nickel (2001), and (REE,U)–(Nb,Ti,Ta) oxides [where REE = rare- whereas in the classification of Dana (Gaines et al., earth elements], e.g. columbite-group minerals, 1997), it belongs to the class 52.04.03 Nesosilicate ixiolites, ferrowodginite as well as samarskite-, Insular SiO4 Groups and O, OH, F and H2O with euxenite-, fergusonite-group minerals, pyrochlore- cations in [6] and/or > [6] coordination/Titanite supergroup minerals, zircon, monazite-(Ce), group, along with titanite (52.04.03.01), malayaite xenotime-(Y), allanite-(Ce) and -(Y), keiviite-(Y), (52.04.03.02), vanadomalayaite (52.04.03.03) and pilawite-(Y) and uraninite (Pieczka et al., 2013, natrotitanite (52.04.03.04). 2014, 2015a). The most fractionated LCT-related parts of the Julianna system are represented by rare Geological setting pods, up to a few metres in diameter, located in the central parts of swellings at intersections of larger Żabinskiité was found in a pegmatitic system pegmatitic dykes, where the quartz core would exposed in an amphibolite-migmatite quarry of typically occur.
Load more

Recommended publications
  • Washington State Minerals Checklist
    Division of Geology and Earth Resources MS 47007; Olympia, WA 98504-7007 Washington State 360-902-1450; 360-902-1785 fax E-mail: [email protected] Website: http://www.dnr.wa.gov/geology Minerals Checklist Note: Mineral names in parentheses are the preferred species names. Compiled by Raymond Lasmanis o Acanthite o Arsenopalladinite o Bustamite o Clinohumite o Enstatite o Harmotome o Actinolite o Arsenopyrite o Bytownite o Clinoptilolite o Epidesmine (Stilbite) o Hastingsite o Adularia o Arsenosulvanite (Plagioclase) o Clinozoisite o Epidote o Hausmannite (Orthoclase) o Arsenpolybasite o Cairngorm (Quartz) o Cobaltite o Epistilbite o Hedenbergite o Aegirine o Astrophyllite o Calamine o Cochromite o Epsomite o Hedleyite o Aenigmatite o Atacamite (Hemimorphite) o Coffinite o Erionite o Hematite o Aeschynite o Atokite o Calaverite o Columbite o Erythrite o Hemimorphite o Agardite-Y o Augite o Calciohilairite (Ferrocolumbite) o Euchroite o Hercynite o Agate (Quartz) o Aurostibite o Calcite, see also o Conichalcite o Euxenite o Hessite o Aguilarite o Austinite Manganocalcite o Connellite o Euxenite-Y o Heulandite o Aktashite o Onyx o Copiapite o o Autunite o Fairchildite Hexahydrite o Alabandite o Caledonite o Copper o o Awaruite o Famatinite Hibschite o Albite o Cancrinite o Copper-zinc o o Axinite group o Fayalite Hillebrandite o Algodonite o Carnelian (Quartz) o Coquandite o o Azurite o Feldspar group Hisingerite o Allanite o Cassiterite o Cordierite o o Barite o Ferberite Hongshiite o Allanite-Ce o Catapleiite o Corrensite o o Bastnäsite
    [Show full text]
  • Rediscovery of the Elements — a Historical Sketch of the Discoveries
    REDISCOVERY OF THE ELEMENTS — A HISTORICAL SKETCH OF THE DISCOVERIES TABLE OF CONTENTS incantations. The ancient Greeks were the first to Introduction ........................1 address the question of what these principles 1. The Ancients .....................3 might be. Water was the obvious basic 2. The Alchemists ...................9 essence, and Aristotle expanded the Greek 3. The Miners ......................14 philosophy to encompass a obscure mixture of 4. Lavoisier and Phlogiston ...........23 four elements — fire, earth, water, and air — 5. Halogens from Salts ...............30 as being responsible for the makeup of all 6. Humphry Davy and the Voltaic Pile ..35 materials of the earth. As late as 1777, scien- 7. Using Davy's Metals ..............41 tific texts embraced these four elements, even 8. Platinum and the Noble Metals ......46 though a over-whelming body of evidence 9. The Periodic Table ................52 pointed out many contradictions. It was taking 10. The Bunsen Burner Shows its Colors 57 thousands of years for mankind to evolve his 11. The Rare Earths .................61 thinking from Principles — which were 12. The Inert Gases .................68 ethereal notions describing the perceptions of 13. The Radioactive Elements .........73 this material world — to Elements — real, 14. Moseley and Atomic Numbers .....81 concrete basic stuff of this universe. 15. The Artificial Elements ...........85 The alchemists, who devoted untold Epilogue ..........................94 grueling hours to transmute metals into gold, Figs. 1-3. Mendeleev's Periodic Tables 95-97 believed that in addition to the four Aristo- Fig. 4. Brauner's 1902 Periodic Table ...98 telian elements, two principles gave rise to all Fig. 5. Periodic Table, 1925 ...........99 natural substances: mercury and sulfur.
    [Show full text]
  • Rare Earth Elements in Planetary Crusts: Insights from Chemically Evolved Igneous Suites on Earth and the Moon
    minerals Article Rare Earth Elements in Planetary Crusts: Insights from Chemically Evolved Igneous Suites on Earth and the Moon Claire L. McLeod 1,* and Barry J. Shaulis 2 1 Department of Geology and Environmental Earth Sciences, 203 Shideler Hall, Miami University, Oxford, OH 45056, USA 2 Department of Geosciences, Trace Element and Radiogenic Isotope Lab (TRaIL), University of Arkansas, Fayetteville, AR 72701, USA; [email protected] * Correspondence: [email protected]; Tel.: +1-513-529-9662 Received: 5 July 2018; Accepted: 8 October 2018; Published: 16 October 2018 Abstract: The abundance of the rare earth elements (REEs) in Earth’s crust has become the intense focus of study in recent years due to the increasing societal demand for REEs, their increasing utilization in modern-day technology, and the geopolitics associated with their global distribution. Within the context of chemically evolved igneous suites, 122 REE deposits have been identified as being associated with intrusive dike, granitic pegmatites, carbonatites, and alkaline igneous rocks, including A-type granites and undersaturated rocks. These REE resource minerals are not unlimited and with a 5–10% growth in global demand for REEs per annum, consideration of other potential REE sources and their geological and chemical associations is warranted. The Earth’s moon is a planetary object that underwent silicate-metal differentiation early during its history. Following ~99% solidification of a primordial lunar magma ocean, residual liquids were enriched in potassium, REE, and phosphorus (KREEP). While this reservoir has not been directly sampled, its chemical signature has been identified in several lunar lithologies and the Procellarum KREEP Terrane (PKT) on the lunar nearside has an estimated volume of KREEP-rich lithologies at depth of 2.2 × 108 km3.
    [Show full text]
  • Synthesis, Properties and Uses of Chromium-Based Pigments from The
    Synthesis, properties and uses of chromium-based pigments from the Manufacture de Sèvres Louisiane Verger, Olivier Dargaud, Mathieu Chassé, Nicolas Trcera, Gwenaëlle Rousse, Laurent Cormier To cite this version: Louisiane Verger, Olivier Dargaud, Mathieu Chassé, Nicolas Trcera, Gwenaëlle Rousse, et al.. Syn- thesis, properties and uses of chromium-based pigments from the Manufacture de Sèvres. Journal of Cultural Heritage, Elsevier, 2018, 30, pp.26 - 33. 10.1016/j.culher.2017.09.012. hal-01777923 HAL Id: hal-01777923 https://hal.sorbonne-universite.fr/hal-01777923 Submitted on 25 Apr 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Synthesis, Properties and Uses of Chromium-Based Pigments from the Manufacture de Sèvres Louisiane Verger1,2, Olivier Dargaud2, Mathieu Chassé1, Nicolas Trcera3, Gwenaëlle Rousse4,5, Laurent Cormier1 1. Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 7590, Muséum national d'Histoire naturelle, IRD UMR 206, 4 place Jussieu, F-75005 Paris, France 2. Cité de la céramique - Sèvres et Limoges, 2 Place de la Manufacture, 92310 Sèvres, France 3. Synchrotron Soleil, 91190 Saint-Aubin 4 .Collège de France, Chimie du Solide et de l’Energie, UMR 8260, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France.
    [Show full text]
  • Mineral Collecting Sites in North Carolina by W
    .'.' .., Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie RUTILE GUMMITE IN GARNET RUBY CORUNDUM GOLD TORBERNITE GARNET IN MICA ANATASE RUTILE AJTUNITE AND TORBERNITE THULITE AND PYRITE MONAZITE EMERALD CUPRITE SMOKY QUARTZ ZIRCON TORBERNITE ~/ UBRAR'l USE ONLV ,~O NOT REMOVE. fROM LIBRARY N. C. GEOLOGICAL SUHVEY Information Circular 24 Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie Raleigh 1978 Second Printing 1980. Additional copies of this publication may be obtained from: North CarOlina Department of Natural Resources and Community Development Geological Survey Section P. O. Box 27687 ~ Raleigh. N. C. 27611 1823 --~- GEOLOGICAL SURVEY SECTION The Geological Survey Section shall, by law"...make such exami­ nation, survey, and mapping of the geology, mineralogy, and topo­ graphy of the state, including their industrial and economic utilization as it may consider necessary." In carrying out its duties under this law, the section promotes the wise conservation and use of mineral resources by industry, commerce, agriculture, and other governmental agencies for the general welfare of the citizens of North Carolina. The Section conducts a number of basic and applied research projects in environmental resource planning, mineral resource explora­ tion, mineral statistics, and systematic geologic mapping. Services constitute a major portion ofthe Sections's activities and include identi­ fying rock and mineral samples submitted by the citizens of the state and providing consulting services and specially prepared reports to other agencies that require geological information. The Geological Survey Section publishes results of research in a series of Bulletins, Economic Papers, Information Circulars, Educa­ tional Series, Geologic Maps, and Special Publications.
    [Show full text]
  • Niobian Rutile and Its Associations at Jolotca, Ditrau Alkaline Intrusive Massif, East Carpathians, Romania
    THE PUBLISHING HOUSE GEONOMY OF THE ROMANIAN ACADEMY Review article NIOBIAN RUTILE AND ITS ASSOCIATIONS AT JOLOTCA, DITRAU ALKALINE INTRUSIVE MASSIF, EAST CARPATHIANS, ROMANIA Paulina HIRTOPANU1, Robert J. FAIRHURST2 and Gyula JAKAB3 1Department of Mineralogy, University of Bucharest, 1, Nicolae Balcescu Blv., 010041 Bucharest, RO; 2Technical Laboratory at Lhoist North America, Inc., 3700 Hulen Street, Forth Worth, Texas 76107, US; 3IG Mineral Gheorgheni, Romania Corresponding author: Paulina HIRTOPANU, E-mail: [email protected] Accepted December 17, 2014 The Nb-rutile at Jolotca, situated in Ditrau alkaline intrusive complex occurs as intergrowths with ilmenite, Mn-ilmenite, Fe-pyrophanite and has ferrocolumbite, manganocolumbite, aeshynite-(Ce), aeshynite-(Nd), fergusonite-(Y), euxenite-(Y) and polycrase-(Y) exsolutions. The textural relations in this association show the replacement of niobian rutile by ilmenite and Mn ilmenite. Niobian rutile is the oldest mineral. Ilmenite and Mn-ilmenite occur as lamellar exsolutions in niobian rutile and as veins, and separately, in grains as solid solution with Fe-pyrophanite. The range of Nb2O5 content in Nb rutile varies generally from 2 to 15% wt. Sometimes, the values of Nb2O5 (up to 37.5% wt) are higher than any previously recorded for rutile from alkaline suites, pegmatites and carbonatites, having a chemical composition similar to that of old name „ilmenorutile”. Because of such a big difference in chemical composition, and the different kind of appearances of the two rutiles, they can be separated into two Nb rutile generations. The first niobian rutile (niobian rutile I) formed on old rutile, has low Nb2O5 (10-15wt%), and oscillatory composition. Its composition is characteristically close to stoichiometric TiO2.
    [Show full text]
  • EMD Uranium (Nuclear Minerals) Committee
    EMD Uranium (Nuclear Minerals) Committee EMD Uranium (Nuclear Minerals) Mid-Year Committee Report Michael D. Campbell, P.G., P.H., Chair December 12, 2011 Vice-Chairs: Robert Odell, P.G., (Vice-Chair: Industry), Consultant, Casper, WY Steven N. Sibray, P.G., (Vice-Chair: University), University of Nebraska, Lincoln, NE Robert W. Gregory, P.G., (Vice-Chair: Government), Wyoming State Geological Survey, Laramie, WY Advisory Committee: Henry M. Wise, P.G., Eagle-SWS, La Porte, TX Bruce Handley, P.G., Environmental & Mining Consultant, Houston, TX James Conca, Ph.D., P.G., Director, Carlsbad Research Center, New Mexico State U., Carlsbad, NM Fares M Howari, Ph.D., University of Texas of the Permian Basin, Odessa, TX Hal Moore, Moore Petroleum Corporation, Norman, OK Douglas C. Peters, P.G., Consultant, Golden, CO Arthur R. Renfro, P.G., Senior Geological Consultant, Cheyenne, WY Karl S. Osvald, P.G., Senior Geologist, U.S. BLM, Casper WY Jerry Spetseris, P.G., Consultant, Austin, TX Committee Activities During the past 6 months, the Uranium Committee continued to monitor the expansion of the nuclear power industry and associated uranium exploration and development in the U.S. and overseas. New power-plant construction has begun and the country is returning to full confidence in nuclear power as the Fukushima incident is placed in perspective. India, Africa and South America have recently emerged as serious exploration targets with numerous projects offering considerable merit in terms of size, grade, and mineability. During the period, the Chairman traveled to Columbus, Ohio to make a presentation to members of the Ohio Geological Society on the status of the uranium and nuclear industry in general (More).
    [Show full text]
  • Materiais 2017
    MATERIAIS 2017 XVIII Congresso da Sociedade Portuguesa dos Materiais VIII International Symposium on Materials An International Conference … Exploring the Latest Progress in Materials Development … Bringing Science Solutions to the World 9-12 April, 2017 University of Aveiro, Aveiro, Portugal Table of Contents Foreword iii Sponsorship iv Organization of Materiais 2017 v Conference Program Program Digest vii Detailed Conference Program viii Numbered List of Posters xxvi Abstracts Plenary Talks 1 Keynote Talks 4 Invited Talks 8 Regular Talks 18 Sattelite Event on Materials for Energy 19 Symposium A - Functional Materials 36 Symposium B - Structural Materials 92 Symposium C - Processing Technologies 117 Symposium D - Characterization and Modelling 152 Posters 175 Symposium A - Functional Materials 176 Symposium B - Structural Materials 289 Symposium C - Processing Technologies 323 Symposium D - Characterization and Modelling 364 ii MATERIAIS 2017, XVIII Congresso da Sociedade Portuguesa de Materiais and VIII International Symposium on Materials, will take place in Aveiro, Portugal, from 9 – 12 April 2017. MATERIAIS 2017, aiming to explore the latest Progress in Materials Development and to bring Science Solutions to the World, provides the ideal forum for scientists, developers, engineers and companies to share their latest breakthroughs, achievements and views in the field of Materials. MATERIAIS 2017 will be hosted by the University of Aveiro in the beautiful city of Aveiro, and in one of the oldest nations in the world, Portugal. It will cover all areas of Materials from Functional Materials, Structural Materials and Processing Technologies to Characterization and Modelling. MATERIAIS 2017 continues the famous MATERIAIS conferences organized every two years by the Portuguese Materials Society (SPM), and is the eighteenth National and the eighth International Materials Conference, since the inaugural one, held in Lisbon in 1983.
    [Show full text]
  • Malayaite Casnsio5 C 2001 Mineral Data Publishing, Version 1.2 ° Crystal Data: Monoclinic
    Malayaite CaSnSiO5 c 2001 Mineral Data Publishing, version 1.2 ° Crystal Data: Monoclinic. Point Group: 2=m: Crystals wedge-shaped, up to 3 cm; massive, as a coating on cassiterite. Physical Properties: Hardness = 3.5{4 D(meas.) = 4.3(2) D(calc.) = [4.55] Fluoresces pale to bright yellow or yellow-green under UV. Optical Properties: Translucent. Color: Very pale creamy yellow to deep yellow-orange, colorless. Luster: Resinous. Optical Class: Biaxial ({). ® = 1.764{1.765 ¯ = 1.783{1.786 ° = 1.798{1.801 2V(meas.) = 84±{86± Cell Data: Space Group: A2=a: a = 7.156(6) b = 8.895(9) c = 6.668(4) ¯ = 113:4(1)± Z = 4 X-ray Powder Pattern: Synthetic. 3.28 (100), 5.05 (50), 2.639 (45), 3.06 (35), 2.665 (30), 2.412 (20), 2.099 (20) Chemistry: (1) (2) SiO2 21.26 22.49 SnO2 58.48 56.38 FeO 0.15 CaO 19.14 20.94 LOI 0.50 Total 99.38 99.96 (1) Sungei Lah Valley, Malaya; corresponds to Ca0:95Sn1:07Si0:98O5: (2) Gumble, Australia; by electron microprobe, corresponding to Ca1:00Sn1:00Fe0:01Si1:00O5: Occurrence: In tin-rich contact metamorphic skarn deposits, probably a hydrothermal alteration product of cassiterite or other tin-bearing minerals. Association: Cassiterite, quartz, calcite, wollastonite, pyroxene, garnet. Distribution: In the Sungei Lah Valley, Chenderiang, Perak State, and other locations in Malaya, Malaysia. From Piniok, Thailand. In the Toroku and Mitate mines, Miyazaki Prefecture; the Sampo mine, Okayama Prefecture; the Hoei mine, Oita Prefecture; and the Kuga mine, Yamaguchi Prefecture, Japan.
    [Show full text]
  • Materiais 2017
    MATERIAIS 2017 XVIII Congresso da Sociedade Portuguesa dos Materiais VIII International Symposium on Materials An International Conference … Exploring the Latest Progress in Materials Development … Bringing Science Solutions to the World 9-12 April, 2017 University of Aveiro, Aveiro, Portugal Table of Contents Foreword iii Sponsorship iv Organization of Materiais 2017 v Conference Program Program Digest vii Detailed Conference Program viii Numbered List of Posters xxvi Abstracts Plenary Talks 1 Keynote Talks 4 Invited Talks 8 Regular Talks 18 Sattelite Event on Materials for Energy 19 Symposium A - Functional Materials 36 Symposium B - Structural Materials 92 Symposium C - Processing Technologies 117 Symposium D - Characterization and Modelling 152 Posters 175 Symposium A - Functional Materials 176 Symposium B - Structural Materials 289 Symposium C - Processing Technologies 323 Symposium D - Characterization and Modelling 364 ii MATERIAIS 2017, XVIII Congresso da Sociedade Portuguesa de Materiais and VIII International Symposium on Materials, will take place in Aveiro, Portugal, from 9 – 12 April 2017. MATERIAIS 2017, aiming to explore the latest Progress in Materials Development and to bring Science Solutions to the World, provides the ideal forum for scientists, developers, engineers and companies to share their latest breakthroughs, achievements and views in the field of Materials. MATERIAIS 2017 will be hosted by the University of Aveiro in the beautiful city of Aveiro, and in one of the oldest nations in the world, Portugal. It will cover all areas of Materials from Functional Materials, Structural Materials and Processing Technologies to Characterization and Modelling. MATERIAIS 2017 continues the famous MATERIAIS conferences organized every two years by the Portuguese Materials Society (SPM), and is the eighteenth National and the eighth International Materials Conference, since the inaugural one, held in Lisbon in 1983.
    [Show full text]
  • A Glossary of Uranium- and Thorium-Bearing Minerals
    GEOLOGICAL SURVEY CIRCULAR 74 April 1950 A GLOSSARY OF URANIUM­ AND THORIUM-BEARING MINERALS By Judith Weiss Frondel and Michael F1eischer UNITED STATES DEPARTMENT OF THE INTERIOR Oscar L. Chapman, Secretary GEOLOGICAL SURVEY W. E. Wrather, Director WASHINGTON. D. C. Free on application to the Director, Geological Survey, Washington 25, D. C. A GLOSSAR-Y OF URANIUM- AND THORIUM-BEARING MINERALS By Judith Weiss Fronde! and Michael Fleischer CONTENTS Introduction ••oooooooooo••••••oo•-•oo•••oo••••••••••oooo•oo••oooooo••oo•oo•oo•oooo••oooooooo•oo• 1 .A. Uranium and thorium minerals oooo oo oo ......................... oo .... oo oo oo oo oo oooooo oo 2 B. Minerals with minor amounts of uranium and thorium 000000000000000000000000.... 10 C. Minerals that should be tested for uranium and thorium ...... 00 .. 00000000000000 14 D. Minerals that are non-uranium- or non-thorium­ bearing, but that have been reported to contain impurities or intergrowths of uranium, thorium, or rare-earth minerals oooooo•oo ............ oo ... oo .. oooooo'""""oo" .. 0000 16 Index oo ...... oooooo•oo••••oo•oooo•oo•oooo•·~· .. •oooo•oooooooooooo•oooooo•oooooo•oooo••oo•••oooo••• 18 INTRODUCTION The U. S. ·Geological Survey has for some time been making a systematic survey of da~ pertaining to uranium and thorium minerals and to those minerals that contain trace1 or more of uranium and thorium. This survey consists of collecting authoritative chemical, optical, and X-ray diffraction data from the literature and of adding to these data, where inadequate, by work in the laboratory. The results will he reported from time to time, and the authors welcome in- formation on additional data and names.
    [Show full text]
  • Minerals Found in Michigan Listed by County
    Michigan Minerals Listed by Mineral Name Based on MI DEQ GSD Bulletin 6 “Mineralogy of Michigan” Actinolite, Dickinson, Gogebic, Gratiot, and Anthonyite, Houghton County Marquette counties Anthophyllite, Dickinson, and Marquette counties Aegirinaugite, Marquette County Antigorite, Dickinson, and Marquette counties Aegirine, Marquette County Apatite, Baraga, Dickinson, Houghton, Iron, Albite, Dickinson, Gratiot, Houghton, Keweenaw, Kalkaska, Keweenaw, Marquette, and Monroe and Marquette counties counties Algodonite, Baraga, Houghton, Keweenaw, and Aphrosiderite, Gogebic, Iron, and Marquette Ontonagon counties counties Allanite, Gogebic, Iron, and Marquette counties Apophyllite, Houghton, and Keweenaw counties Almandite, Dickinson, Keweenaw, and Marquette Aragonite, Gogebic, Iron, Jackson, Marquette, and counties Monroe counties Alunite, Iron County Arsenopyrite, Marquette, and Menominee counties Analcite, Houghton, Keweenaw, and Ontonagon counties Atacamite, Houghton, Keweenaw, and Ontonagon counties Anatase, Gratiot, Houghton, Keweenaw, Marquette, and Ontonagon counties Augite, Dickinson, Genesee, Gratiot, Houghton, Iron, Keweenaw, Marquette, and Ontonagon counties Andalusite, Iron, and Marquette counties Awarurite, Marquette County Andesine, Keweenaw County Axinite, Gogebic, and Marquette counties Andradite, Dickinson County Azurite, Dickinson, Keweenaw, Marquette, and Anglesite, Marquette County Ontonagon counties Anhydrite, Bay, Berrien, Gratiot, Houghton, Babingtonite, Keweenaw County Isabella, Kalamazoo, Kent, Keweenaw, Macomb, Manistee,
    [Show full text]