DOCSLIB.ORG

The Phosphate Mineral Arrojadite-(Kfe) and Its Spectroscopic Characteri- Zation

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
The Phosphate Mineral Arrojadite-(Kfe) and Its Spectroscopic Characteri- Zation This may be the author’s version of a work that was submitted/accepted for publication in the following source: Frost, Ray, Xi, Yunfei, Scholz, Ricardo, & Horta, Laura (2013) The phosphate mineral arrojadite-(KFe) and its spectroscopic characteri- zation. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 109, pp. 138-145. This file was downloaded from: https://eprints.qut.edu.au/58843/ c Consult author(s) regarding copyright matters This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the docu- ment is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recog- nise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to [email protected] License: Creative Commons: Attribution-Noncommercial-No Derivative Works 2.5 Notice: Please note that this document may not be the Version of Record (i.e. published version) of the work. Author manuscript versions (as Sub- mitted for peer review or as Accepted for publication after peer review) can be identified by an absence of publisher branding and/or typeset appear- ance. If there is any doubt, please refer to the published source. https://doi.org/10.1016/j.saa.2013.02.027 1 The phosphate mineral arrojadite-(KFe) and its spectroscopic characterization 2 3 Ray L. Frosta, Yunfei Xia, Ricardo Scholzb, Laura Frota Campos Hortab 4 5 a School of Chemistry, Physics and Mechanical Engineering, Science and Engineering 6 Faculty, Queensland University of Technology, GPO Box 2434, Brisbane Queensland 4001, 7 Australia. 8 9 b Geology Department, School of Mines, Federal University of Ouro Preto, Campus Morro do 10 Cruzeiro, Ouro Preto, MG, 35,400-00, Brazil. 11 12 Abstract: 13 The arrojadite-(KFe) mineral has been analyzed using a combination of scanning electron 14 microscopy and a combination of Raman and infrared spectroscopy. The origin of the mineral 15 is Rapid Creek sedimentary phosphatic iron formation, northern Yukon. The formula of the 16 mineral was determined as 17 K2.06Na2Ca0.89Na3.23(Fe7.82Mg4.40Mn0.78)∑13.00Al1.44(PO4)10.85(PO3OH0.23)(OH)2. 18 The complexity of the mineral formula is reflected in the spectroscopy. Raman bands at 975, -1 -1 3- 19 991 and 1005 cm with shoulder bands at 951 and 1024 cm are assigned to the PO4 ν1 20 symmetric stretching modes. The Raman bands at 1024, 1066, 1092, 1123, 1148 and 1187 -1 3- 21 cm are assigned to the PO4 ν3 antisymmetric stretching modes. A series of Raman bands -1 22 observed at 540, 548, 557, 583, 604, 615 and 638 cm are attributed to the ν4 out of plane 23 bending modes of the PO4 and H2PO4 units. The ν2 PO4 and H2PO4 bending modes are 24 observed at 403, 424, 449, 463, 479 and 513 cm-1. Hydroxyl and water stretching bands are 25 readily observed. Vibrational spectroscopy enables new information about the complex 26 phosphate mineral arrojadite-(KFe) to be obtained. 27 28 Key words: arrojadite, phosphate, Raman spectroscopy, infrared spectroscopy 29 30 Author to whom correspondence should be addressed ([email protected]) P +61 7 3138 2407 F: +61 7 3138 1804 1 31 Introduction 32 33 The arrojadite mineral group is a complex group of phosphates with general chemical 34 formula given as: A2B2Ca1Na2+xM13R(PO4)11(PO3OH1-x)W2, where the site A is occupied by 35 large and divalent cations (Ba, Sr, Pb) plus vacancy, or monovalent cations (K, Na). The B 36 site is occupied by either small divalent cations (Fe, Mn, Mg) plus vacancy, or monovalent 37 cations (Na). The M site is essentially occupied by Fe2+ or Mn2+ and possibility of 38 substitution by Mg, Zn, Li. R are trivalent cations (Al, Fe3+) and W are OH- and F- [1]. The 39 nomenclature of arrojadite group was established by Chopin et al. (2006) [2]. 40 41 The crystal structure of arrojadite was first described by Krutik et al. [3] and latter refined by 42 Merlino et al. [4], Moore et al. [5], Steele [6] and Cámara et al. [1]. The structure of a 43 synthetic Fe3+ arrojadite was refined by Yakubovich et al. [7]. Arrojadite group minerals 44 crystallizes in the monoclinic crystal system, Space Group Cc [1]. Unit cell parameters are 45 variable between the members of the group, however refined data for arrojadite-(KFe) are 46 still not available and are restricted to the data published by Lindberg [8]. 47 48 In recent years, the application of spectroscopic techniques for the understanding the 49 structure of phosphate minerals is increasing, with special attention to Al phosphates [9-12]. 50 Farmer [13] divided the vibrational spectra of phosphates according to the presence, or 51 absence of water and hydroxyl units. In aqueous systems, Raman spectra of phosphate −1 52 oxyanions show a symmetric stretching mode (ν1) at 938 cm , the antisymmetric stretching −1 −1 53 mode (ν3) at 1017 cm , the symmetric bending mode (ν2) at 420 cm and the ν4 mode at 567 −1 54 cm [14-17]. The value for the ν1 symmetric stretching vibration of PO4 units as determined 55 by infrared spectroscopy was given as 930 cm−1 (augelite), 940 cm−1 (wavellite), 970 cm−1 56 (rockbridgeite), 995 cm−1 (dufrénite) and 965 cm−1 (beraunite). The position of the symmetric 57 stretching vibration is dependent upon the crystal chemistry of the mineral and is a function 58 of the cation and crystal structure. The fact that the symmetric stretching mode is observed in 59 the infrared spectrum affirms a reduction in symmetry of the PO4 units. 60 61 The value for the ν2 symmetric bending vibration of PO4 units as determined by infrared 62 spectroscopy was given as 438 cm−1 (augelite), 452 cm−1 (wavellite), 440 and 415 cm−1 63 (rockbridgeite), 455, 435 and 415 cm−1 (dufrénite) and 470 and 450 cm−1 (beraunite). The 64 observation of multiple bending modes provides an indication of symmetry reduction of the 2 65 PO4 units. This symmetry reduction is also observed through the ν3 antisymmetric stretching 66 vibrations. Augelite shows infrared bands at 1205, 1155, 1079 and 1015 cm−1 [18]; wavellite 67 at 1145, 1102, 1062 and 1025 cm−1; rockbridgeite at 1145, 1060 and 1030 cm−1; dufrénite at 68 1135, 1070 and 1032 cm−1; and beraunite at 1150, 1100, 1076 and 1035 cm−1. 69 70 In this work, spectroscopic investigation of monomineral arrojadite-(KFe) sample from Rapid 71 Creek, Yukon, Canada has been carried out. The analysis includes spectroscopic 72 characterization of the structure with infrared and Raman spectroscopy. Chemical analysis 73 was applied to support the mineral characterization. 74 75 Experimental 76 77 Samples description and preparation 78 The arrojadite-(KFe) sample forms part of the collection of the Geology Department of the 79 Federal University of Ouro Preto, Minas Gerais, Brazil, with sample code SAB065. The 80 sample was gently crushed and the associated minerals were removed under a 81 stereomicroscope Leica MZ4. The arrojadite-(KFe) sample was phase analyzed by X-ray 82 diffraction. 83 84 The Rapid Creek sedimentary phosphatic iron formation comprises the upper and youngest 85 portion of an Aptian-Albian flyschoid sequence which reaches a maximum thickness of four 86 kilometres in the Blow Trough. The phosphate association is composed mainly of rare 87 minerals such as satterlyite, arrojadite group minerals, augelite, lazulite and gormanite, which 88 reflect an original calcium-deficient composition. The deposition of iron and magnesium 89 phosphates as well as apatite is strongly indicated, and this condition is unique for marine 90 phosphorites [19]. 91 92 93 Scanning electron microscopy (SEM) 94 Arrojadite-(KFe) crystals were coated with a 5nm layer of evaporated carbon. Secondary 95 Electron and Backscattering Electron images were obtained using a JEOL JSM-6360LV 96 equipment. Qualitative and semi-quantitative chemical analyses in the EDS mode were 97 performed with a ThermoNORAN spectrometer model Quest and was applied to support the 98 mineral characterization. 3 99 100 Raman microprobe spectroscopy 101 Crystals of arrojadite-(KFe) were placed on a polished metal surface on the stage of an 102 Olympus BHSM microscope, which is equipped with 10x, 20x, and 50x objectives. The 103 microscope is part of a Renishaw 1000 Raman microscope system, which also includes a 104 monochromator, a filter system and a CCD detector (1024 pixels). The Raman spectra were 105 excited by a Spectra-Physics model 127 He-Ne laser producing highly polarized light at 633 106 nm and collected at a nominal resolution of 2 cm-1 and a precision of ± 1 cm-1 in the range 107 between 200 and 4000 cm-1. Repeated acquisitions on the crystals using the highest 108 magnification (50x) were accumulated to improve the signal to noise ratio of the spectra. 109 Raman Spectra were calibrated using the 520.5 cm-1 line of a silicon wafer. The Raman 110 spectrum of at least 10 crystals was collected to ensure the consistency of the spectra. 111 112 An image of the arrojadite-(KFe) crystals measured is shown in the supplementary 113 information as Figure S1. Clearly the crystals of arrojadite-(KFe) are readily observed, 114 making the Raman spectroscopic measurements readily obtainable. 115 116 Infrared spectroscopy 117 Infrared spectra were obtained using a Nicolet Nexus 870 FTIR spectrometer with a smart 118 endurance single bounce diamond ATR cell.
Load more

Recommended publications
  • Mineral Processing
    Mineral Processing Foundations of theory and practice of minerallurgy 1st English edition JAN DRZYMALA, C. Eng., Ph.D., D.Sc. Member of the Polish Mineral Processing Society Wroclaw University of Technology 2007 Translation: J. Drzymala, A. Swatek Reviewer: A. Luszczkiewicz Published as supplied by the author ©Copyright by Jan Drzymala, Wroclaw 2007 Computer typesetting: Danuta Szyszka Cover design: Danuta Szyszka Cover photo: Sebastian Bożek Oficyna Wydawnicza Politechniki Wrocławskiej Wybrzeze Wyspianskiego 27 50-370 Wroclaw Any part of this publication can be used in any form by any means provided that the usage is acknowledged by the citation: Drzymala, J., Mineral Processing, Foundations of theory and practice of minerallurgy, Oficyna Wydawnicza PWr., 2007, www.ig.pwr.wroc.pl/minproc ISBN 978-83-7493-362-9 Contents Introduction ....................................................................................................................9 Part I Introduction to mineral processing .....................................................................13 1. From the Big Bang to mineral processing................................................................14 1.1. The formation of matter ...................................................................................14 1.2. Elementary particles.........................................................................................16 1.3. Molecules .........................................................................................................18 1.4. Solids................................................................................................................19
    [Show full text]
  • STRONG and WEAK INTERLAYER INTERACTIONS of TWO-DIMENSIONAL MATERIALS and THEIR ASSEMBLIES Tyler William Farnsworth a Dissertati
    STRONG AND WEAK INTERLAYER INTERACTIONS OF TWO-DIMENSIONAL MATERIALS AND THEIR ASSEMBLIES Tyler William Farnsworth A dissertation submitted to the faculty at the University of North Carolina at Chapel Hill in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Chemistry. Chapel Hill 2018 Approved by: Scott C. Warren James F. Cahoon Wei You Joanna M. Atkin Matthew K. Brennaman © 2018 Tyler William Farnsworth ALL RIGHTS RESERVED ii ABSTRACT Tyler William Farnsworth: Strong and weak interlayer interactions of two-dimensional materials and their assemblies (Under the direction of Scott C. Warren) The ability to control the properties of a macroscopic material through systematic modification of its component parts is a central theme in materials science. This concept is exemplified by the assembly of quantum dots into 3D solids, but the application of similar design principles to other quantum-confined systems, namely 2D materials, remains largely unexplored. Here I demonstrate that solution-processed 2D semiconductors retain their quantum-confined properties even when assembled into electrically conductive, thick films. Structural investigations show how this behavior is caused by turbostratic disorder and interlayer adsorbates, which weaken interlayer interactions and allow access to a quantum- confined but electronically coupled state. I generalize these findings to use a variety of 2D building blocks to create electrically conductive 3D solids with virtually any band gap. I next introduce a strategy for discovering new 2D materials. Previous efforts to identify novel 2D materials were limited to van der Waals layered materials, but I demonstrate that layered crystals with strong interlayer interactions can be exfoliated into few-layer or monolayer materials.
    [Show full text]
  • New Mineral Names*
    American Mineralogist, Volume 87, pages 1731–1735, 2002 New Mineral Names* JOHN L. JAMBOR1,† AND ANDREW C. ROBERTS2 1Department of Earth and Ocean Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada 2Geological Survey of Canada, 601 Booth Street, Ottawa K1A 0E8, Canada BRODTKORBITE* The mineral occurs as blue crusts, to 5 mm thickness, and W.H. Paar, D. Topa, A.C. Roberts, A.J. Criddle, G. Amann, as coatings, globules, and fillings in thin fissures. The globules µ R.J. Sureda (2002) The new mineral species brodtkorbite, consist of pseudohexagonal platelets, up to 50 m across and <0.5 µm thick. Electron microprobe analysis gave Y2O3 42.2, Cu2HgSe2, and the associated selenide assemblage from Tuminico, Sierra de Cacho, La Rioja, Argentina. Can. Min- La2O3 0.3, Pr2O3 0.1, Nd2O3 1.3, Sm2O3 1.0, Gd2O3 4.8, Tb2O3 eral., 40, 225–237. 0.4, Dy2O3 3.7, Ho2O3 2.6, Er2O3 2.5, CaO 0.5, CuO 10.9, Cl 3.0, CO2 (CHN) 19.8, H2O (CHN) 10.8, O ≡ Cl 0.7, sum 103.2 Electron microprobe analyses gave Cu 26.2, Hg 40.7, Se wt%, corresponding to (Y3.08Gd0.22Dy0.16Ho0.11Er0.10 Nd0.06Sm0.05 Tb0.02La0.02Pr0.01Ca0.08)Σ3.91 Cu1.12(CO3)3.7Cl0.7(OH)5.79 ·2.4H2O, 32.9, sum 99.8 wt%, corresponding to Cu2.00Hg0.98Se2.02, ide- simplified as (Y,REE)4Cu(CO3)4Cl(OH)5·2H2O. Transparent, ally Cu2HgSe2. The mineral occurs as dark gray individual anhedral grains, up to 50 × 100 µm, and as aggregates to 150 × vitreous to pearly luster, pale blue streak, H = ~4, no cleavage 250 µm.
    [Show full text]
  • Maricite Nafe2+PO4
    2+ Mari´cite NaFe PO4 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Orthorhombic. Point Group: 2/m 2/m 2/m. Rarely as crudely formed crystals, elongated along [100], usually radial to subparallel in nodules, to 15 cm; forms include {010}, {011}, {012}, {032}. Physical Properties: Hardness = 4–4.5 D(meas.) = 3.66(2) D(calc.) = 3.69 Optical Properties: Transparent to translucent. Color: Colorless, pale gray, pale brown. Streak: White. Luster: Vitreous. Optical Class: Biaxial (–). Orientation: X = a; Y = b. Dispersion: r>v; weak. α = 1.676(2) β = 1.695(2) γ = 1.698(2) 2V(meas.) = 43.5◦ 2V(calc.) = 43.0◦ Cell Data: Space Group: P mnb. a = 6.861(1) b = 8.987(1) c = 5.045(1) Z = 4 X-ray Powder Pattern: Big Fish River area, Canada. 2.574 (100), 2.729 (90), 2.707 (80), 1.853 (60), 3.705 (40), 2.525 (30), 1.881 (30) Chemistry: (1) (2) P2O5 42.5 40.83 FeO 37.4 41.34 MnO 3.1 MgO 0.8 CaO 0.0 Na2O 16.5 17.83 Total 100.3 100.00 (1) Big Fish River area, Canada; by electron microprobe, average of six analyses; corresponding to Na0.91(Fe0.89Mn0.07Mg0.03)Σ=0.99P1.02O4. (2) NaFePO4. Occurrence: In phosphatic nodules in sideritic ironstones. Association: Ludlamite, vivianite, quartz, pyrite, wolfeite, apatite, wicksite, nahpoite, satterlyite. Distribution: From the Big Fish River area, Yukon Territory, Canada. Name: Honors Dr. Luka Mari´c(1899–?), Professor of Mineralogy and Petrology, University of Zagreb, Croatia.
    [Show full text]
  • New Mineral Names*
    American Mineralogist, Volume 65, pages 808-814, 1980 NEW MINERAL NAMES* Mrcnnel Frnrscnr,n. L. J. Cnnnr. G. Y. CHeo,qNp Aoorr PABST Amicite* (Ru6 esoOsr 67alr6 e26)As1 e5 (Rua s56Os6sq3lr6 s33Cu6 62aXAs1 e2sS6615Sbs 0o1) A. Alberti, G. Hentschel and G. Vezzalini (1979) Amicite, a new (Ru6,seaOso ' 6r116 663)(As 1 otr) natural zeolite. Neues fahrb. Mineral. Monatsh., 481-488. "nnSo (Ru6 se6Oss s73lr6 63r)As 1 e7s A. Alberti and G. Vezzalini (1979) The crystal structure of ami- The ideal formula is thus RuAs2. cite, a zeolite. Acta Crystallogr., 358,2866-2869. Precession and Weissenberg X-ray studies show the mineral to Electron microprobe analysis (av. of l0) gave SiO2 36.38, Al2O3 be orthorhombic, Pnnm or Pnn2, a : 5.41, b : 6.2M and c : 29.46 Fe2O3, MgO, BaO traces, CaO 0.22, SrO 0.03, Na2O 8.22, 3.01L, z : 2; D calc. : 8.6928/cm3. Strongest lines of the X-ray K2O 12.96, H2O (loss of wt. on dehydration) 12.80, sum lO(J.UlVo, diffraction pattern (28 lines given) obtained with a home-made corresponding to K3 rrNa3 u,Ca665(417 B6Sis 24)032' 9.61H2O, or Gandolfi+ype cam€ra are: 2.000(50X121), 1.920(l00X2l l), KoNaoAlgSirO.2' l0H2O. TG and DTG curves are given; the lat- r.s0l(90)(002,311), 1.210(70x411,1s0), 1.187(70x132), ter shows a sharp peak at4O-I2O"C and a broad one at 260oC. An 1.133(80)(430),1.095(90X341), 1.083(40X322). The mineral is iso- infrared spectrum is given.
    [Show full text]
  • The Phosphate Mineral Arrojadite-(Kfe) and Its Spectroscopic Characterization ⇑ Ray L
    Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 109 (2013) 138–145 Contents lists available at SciVerse ScienceDirect Spectrochim ica Acta Part A: Molecular and Biomolecu lar Spect rosco py journal homepage: www.elsevier.com/locate/saa The phosphate mineral arrojadite-(KFe) and its spectroscopic characterization ⇑ Ray L. Frost a, , Yunfei Xi a, Ricardo Scholz b, Laura Frota Campos Horta b a School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia b Geology Department, School of Mines, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35,400-00, Brazil highlights graphical abstract " We have undertaken a study of the arrojadite-(KFe) mineral. " Electro n probe analysis shows the formula of the mineral is complex. " The complexity of the mineral formula is reflected in the vibrational spectroscopy. " Vibrational spectroscopy enables new information about this complex phosphate mineral arrojadite to be obtained. article info abstract Article history: The arrojadite- (KFe)mineral has been analyzed using a combination of scanning electron microscopy and Received 22 October 2012 a combination of Raman and infrared spectroscopy. The origin of the mineral is Rapid Creek sedimentary Received in revised form 6 February 2013 phosphatic iron formation ,northern Yukon. The formula of the mineral was determined as Accepted 12 February 2013 K Na Ca Na ðFe Mg Mn Þ Al ðPO Þ ðPO OH ÞðOHÞ . Available online 27 February 2013 2:06 2 0:89 3:23 7:82 4:40 0:78 R13:00 1:44 4 10:85 3 0:23 2 The complexity of the mineral formula is reflected in the spectroscopy.
    [Show full text]
  • Wigksite, a New Mineral from Northeastern Yukon
    Canadiun Mineralogist Vol. 19, pp. 377-380(1981) ,... WIGKSITE,A NEW MINERAL FROM NORTHEASTERNYUKON TERRITORY B. DARKO STURMAN Department of Mineralogy and Geology,Royal Ontario Museum, 100 Queen'sPark, Toronto, Ontario MSS 2C6 DONALD R. PEACOR Department of GeologicalSciences, University ol Michigan, Ann Arbor, Michigan48149, U.S.A. PETE J. DUNN Departrrlentol Mineral Sciences,Snrithsonian lnstitution, Washinsron,D.C. 20560,U.S.A. Ansrnecr (343,610). On trouve la wicksite en plaquettes bleues dans des nodules des formations ferrugineu- Wicksite NaCa2(Fe2+,Mn)aMgFes+(POo)u.2HrO ses et des shales stratifi6s le long de la rividre Big is orthorhombic, space group Pbca, with refined Fish (dans le Nord-Est du territoire du Yukon). cell parametersa 12.896(3),b l2.5ll(3), c 11.634 Cette espdce nouvelle est bleu fonc6 ou vert fonc6 (3) A; Z - 4. The strongest eight ljnes in the en sections minces, opaque en fragments 6pais. X-raydiffraction powder pattern [d in A G)&kl)l Duret| 4Vz-5, clivage {010} bon, densit6 3.54 (me- are 3.502(20)(230), 3.015(80)(411), 2.910(80) surde), 3.58 (calcul6e). Elle est biaxe positive, a (004), 2.868(30)(420), 2.837(30)(104), 2.753 1.713(3),p 1.718(3),t 1.728(3),2Y 660) fotte- (ro0)(412,042), 2.s71(40)(422) and 2.118(60) ment pl6ochroique, X bleu, Y bleu verditre, Z bttn - (343,610). Wicksite occurs as blue plates in nodules jaundtre pdle, absorption X Y > Z. Irs donn6es in bedded ironstone and shale along the Big Fish analytiques (microsonde, ADT-ATG, titration avec River in northeastern Yukon Territory, The new le dichromate de potassium) donnent AlrO3 0'51' mineral is dark blue or dark green in thin frag- Fe,Or 7.98, NazO 3.08, FeO 22.66, MgO 3.77, MnO ments; large fragments are opaque.
    [Show full text]
  • Sarerlvite, a New Hydroxyl.Bearing Ferrous
    Canadian Minerulogist Vol. 16, pp.4tt-4t3 (1978) SARERLVITE,A NEW HYDROXYL.BEARINGFERROUS PHOSPHATE FROMTHE BIG FISH RIVERAREA, VUKON TERRITORY J. A. MANDARINO eNp B. D. STURMAN Depaftment of Mineralogy and Geology, Royal Ontario Mweum, 100 Queen's Park, Toronto, Ontario MSS 2C6 M. I. CORLETT Departrnenl of Geological Sciences,Qaeen's (Jniversity, Kingston, Ontario K7L 3N6 Ansrnecr INTT.oDUcTIoN Satterlyite occum as yellow to brown grains (up Satterlyite is a new niineral found in nodules to 1XlX40 m-) fo nodule.sin shalesalong the in shales along the Big Fish River in the north- Big Fish River in northeastern Yukon Territory. east corner of the Yukon Territory, just west of It has a hardnessof 4r/z to 5, no cleavage,a vitre- the Yukon-Northwest Territories boundary (Lat. ous g/cms lustre and a density of 3.68 (meas.) 68"30,}{ and Long. 136o3,0'W).These nodules and 3.60 g,/cm'3(calc.).The mineral is uniaxial mea$ure up to 10 cm in diameter. Some are negative, n, 1.721, n" t.719, dichroic in thick grains with ru pale yellow, e brownish yelloq ab- megascopically monomineralic, consisting only sorption_€ ) o,. Satterlyite is hexagonal, Space of satterlyite; others show satterlyite in diregt groropP51m, P37m or Pll2; a ll.36l, c 5.0414, sontact with quartz, pyrite, wolfeite and mari- c:o = 0.4437,V : 563.5N, Z - 6. Strongestlines 6ite, a sodium iron phosphate described by in the X-ray powder diffraction -pattern arez 4.49 Sturman et al. (1977). (50)(1011 ), _ 3.s20(70) (zE,r), 2.s90(40)QrrL} The.mineral and name were approved by the 2.84A$0DQ24;O), 2.473(L00)Q2AD, 1.S86(40) Commission on New Minerals and Mineral (2242),r.Q4O(40X6G0), aad r.447(60) (s tB2,2frr, Names, I.M.A.
    [Show full text]
  • Wicksite Naca2(Fe2+,Mn2+)4Mgfe3+(PO4)
    2+ 2+ 3+ Wicksite NaCa2(Fe , Mn )4MgFe (PO4)6 • 2H2O c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Orthorhombic. Point Group: 2/m 2/m 2/m. Crystals are platy on {010}, striated k [100], to 1 cm; granular, massive. Physical Properties: Cleavage: Good on {010}. Hardness = 4.5–5 D(meas.) = 3.54(2) D(calc.) = 3.58 Optical Properties: Opaque, transparent in thin fragments. Color: Dark blue to dark green, nearly black. Streak: Green. Luster: Submetallic. Optical Class: Biaxial (+). Pleochroism: Strong; X = blue; Y = greenish blue; Z = pale yellowish brown. Orientation: X = a; Y = b; Z = c. Dispersion: r< v,strong. Absorption: X = Y > Z. α = 1.713(3) β = 1.718(3) γ = 1.728(3) 2V(meas.) = 66(2)◦ 2V(calc.) = 72◦ Cell Data: Space Group: P cab. a = 12.524(1) b = 12.907(2) c = 11.646(2) Z = 4 X-ray Powder Pattern: Big Fish River, Canada. 2.753 (100), 3.015 (80), 2.910 (80), 2.118 (60), 2.571 (40), 2.868 (30), 2.837 (30) Chemistry: (1) P2O5 41.64 Al2O3 0.51 Fe2O3 7.98 FeO 22.66 MnO 4.72 MgO 3.77 CaO 11.05 Na2O 3.08 H2O 3.70 Total 99.11 (1) Big Fish River, Canada; by electron microprobe, FeO 22.66% by titration, excess Fe as Fe2O3, 2+ 2+ 3+ H2O by DTA-TGA; corresponding to Na1.00Ca1.96(Fe3.16Mn0.66)Σ=3.82Mg0.94(Fe1.00Al0.10)Σ=1.10 • (P0.98O4)6 2.06H2O. Occurrence: In nodules in shale beds in an iron formation.
    [Show full text]
  • Thirty-Second List of New Mineral Names
    MINERALOGICAL MAGAZINE, DECEMBER 1982, VOL. 46, PP. 515-28 Thirty-second list of new mineral names M. H. HEY British Museum (Natural History), Cromwell Rd., London SW7 5BD THE present list comprises 149 new species, nearly all of Composition 4[AITaO4]. Named for its which have been accepted by the IMA Commission on composition. [A.M. 67, 413; M.A. 82M/1801.] New Minerals and Mineral Names, together with names Ammonium illite. E. J. Sterne, R. C. Reynolds, Jr., for 3 artificial products, 2 inadequately described minerals, and H. Zantop, 1982. Clays Clay Min. 30, 161. 3 trade-names for gem materials, and 6 synonyms; likewise 9 erroneous spellings due to back-transliteration Upper Mississippian shales in the DeLong from the Cyrillic, 7 other errors, and 3 German spelling Mtns., Alaska, contain an illite-type mineral in variants. As in earlier lists, abstracts in the Am. Mineral. which over 50 % of the interlayer cations are (A.M.), Mineral. Abstr. (M.A.), Mineral. Mag. (M.M.), NH~. Bull. Mineral. (Bull.),and Zap. vses. mineral, obshch. (Zap.) Aretite. A. P. Khomyakov, A. V. Bykova, and T. A. are appended where available. Kurova, 1981. Zap. 110, 506 (AprTnT). Cleavage A useful list of official Cyrillic transliterations from the masses in the Khibina nepheline-syenite Latin alphabet for some recently described minerals will complex are rhombohedral, a 14.32A, ~ 28 ~ 30', be found in Zap. vses. mineral, obshch., 1980, 109, 742-3. composition 2[Na2Ca4(PO4)3F]. p 3.13 g. cm- 3. Uniaxial, n. 1.577(2). Named for its northern Aldermanite. I.
    [Show full text]
  • Thirty-First List of New Mineral Names
    MINERALOGICAL MAGAZINE, DECEMBER I980, VOL. 43, PP. IO57-69 Thirty-first list of new mineral names M. H. HEY British Museum (Natural History), Cromwell Road, London SW7 Trtis list of 2o5 names includes I49 names of valid or together with moissanite and various alloys. [This probably valid species, most of which have been approved seems extremely improbable from thermo- by the IMA Commission on New Minerals and Mineral dynamic considerations.--M. F., A.M. 65, 2o5.] Names, 8 species of doubtful validity, and I polytypic Alumino-deerite. K. Langer and W. Schreyer, I97O. species; there are also 17 names for artificial products, Coll. Abstr, IMA-IAGOD meetings, Kyoto, IO unnecessary names for varieties, a correction to ~ name originally misspelt, 2 spelling variants of minor im- p. 231. A synthetic phase near Fe122 + A163 + Sl1204o portance, I named mixture, and I rock; 15 erroneous (OH)10 is the AI analogue of deerite a IO.7O8, spellings, mostly due to double transliteration, into and b I8.83o, c 9.6oi A, fl xo6.72~ Pleochroic from Cyrillic, are included because the mineral intended brownish-green prisms up to I5 #m. n 1.765, low is not always readily recognizable. birefringence. As in the last four lists, certain contractions for the Alumohalkosyderite, error for Alumochalcosider- names of frequently cited periodicals are used: A.M., Am. ite. Zap. 1979, 108, no. 6. Mineral.; M.A., Mineral. Abstr.; M.M., Mineral. Mag.; Amieite. A. Alberti, G. Hentschel, and G. Vezzalini, Zap., Zap. vses. mineral, obshch.; Bull., Bull. Mineral. 1979. Neues Jahrb. Mineral., Monatsh. 48I. A new zeolite from H6wenegg, Hegau, Germany, Admontite.
    [Show full text]
  • Stratigraphic Setting of Some New and Rare Phosphate Minerals in the Yukon Territory
    STRATIGRAPHIC SETTING OF SOME NEW AND RARE PHOSPHATE MINERALS IN THE YUKON TERRITORY A Thesis Submitted to the Faculty of Graduate Studies and Research in Partial Fulfilment of the Requirements For the Degree of Master of Science in the Department of Geological Sciences University of Saskatchewan by Benjamin Telfer Robertson Saskatoon, Saskatchewan May, 1980 The author claims copyright. Use shall not be made of the material contained herein without proper acknowledgement, as indicated on the following page. - i i - The author has agreed that the Library, University of Saskatchewan, may make this thesis freely available for inspection. Moreover, the author has agreed that permission for extensive copying of this thesis for scholarly purposes may be \ granted by the professor or professors who supervised the thesis work recorded herein, or, in their absence, by the Head of the Department or the Dean of the College in which the thesis work was done. It is understood that due recognition will be given to the author of this thesis and to the University of Saskatchewan in any use of the material in this thesis. Copying or publication or any other use of the thesis for financial gain without approval by the University of Saskatchewan and the author•s written permission is prohibited. Requests for permission to copy or to make other use of material in this thesis in whole or in part should be addressed to; Head of the Department of Geological Sciences University of Saskatchewan Saskatoon, Saskatchewan - iii - ABSTRACT The Big ~ish River - Rapid Creek phosphatic iron formation, in the Richardson Mountains, Yukon, is a unique sedimentary deposit of lowermost Albian age.
    [Show full text]