 | | Journal (issue) | | 2005 President’s Message October 2005 by Norman Lenz HGMS President 2004–2005 ellow HGMS Members, For.......................................... 11 Norm Lenz Presents .........................................for consideration. The Committee consists of Susan Lenz, Rick Rexroad, Phyllis George, Charlie Fredregill...Bush 1976 EDS analysis reported McIlwaine 1944 goethite a-Fe3+O(OH) hematite livingstonite mercury ...red, yellow, brown, earthy & botr. mixed with goethite dark gray globular masses liquid silver spheres |  | | Journal (issue) | | Outgoing President’s Message December, 2005 by Norman Lenz HGMS President, 2004-2005 ellow HGMS Members, ...Quartz, recotrite, and cookite from the Jeffrey quarry near Little Rock Arkansas. Arkansas Geological...microscopic quartz crystals Group Jones Mill quarry, M.C. Jones Mill quarry, M.C. Anatase deep blue crystals on...quartz leucoxene, minute white crystals Jones Mill quarry, M.C. Brookite deposits, Magnet Cove Ankerite discoids...white turn brown discoids, brown, small Jeffrey quarry, Pulaski Co. Antimony mines, Sevier County Aragonite |  | | Journal (article/letter/editorial) | | 1806 Johann Georg Lenz (1748-1832), the mineralogist at Jena, chose the name of goethite for a mineral,...Goethe Mineralogical Museum at Jena. had forwarded to Lenz notes on the 'Suiten' the Grand-Duke had brought...Towards the end of September 1817, Goethe wrote to Lenz asking him whether Herr G. [sic] Mawe, author of...discussed mineralogical s u b j e c t s w i t h Lenz. E a r l y in 1818, G o e t h e s u b m i t t e...him a collection of minerals, chiefly from the Rhineland, and extensively indexed, labelled, and packed |  | Koch-Muller, M., Mugnaioli, E., Rhede, D., Speziale, S., Kolb, U., Wirth, R. (2014) Synthesis of a quenchable high-pressure form of magnetite (h-Fe3O4) with composition Fe1(Fe2+0.75Mg0.26)Fe2(Fe3+0.70Cr0.15Al0.11Si0.04)2O4. American Mineralogist, 99 (11) 2405-2415 doi:10.2138/am-2014-4944 | Journal (article/letter/editorial) | | GeoForschungsZentrum, Telegrafenberg, 14473 Potsdam, Germany 2 Institut für Physikalische Chemie, Johannes ...Gutenberg-Universität, Jakob-Welder-Weg 11, 55128 Mainz, Germany 3 Department of Physical Sciences, Earth and Environment...GeoForschungsZentrum, Telegrafenberg, 14473 Potsdam, Germany 5 Institute für Angewandte Geowissenschaften, Technische...Darmstadt, Schnittspahnstr. 9, 64287 Darmstadt, Germany 1 Abstract We report the synthesis of h-magnetite...of traces of magnesite in the run products and goethite as alteration product during quenching (see below) |  | Börsig, Nicolas, Scheinost, Andreas C., Shaw, Samuel, Schild, Dieter, Neumann, Thomas (2017) Uptake mechanisms of selenium oxyanions during the ferrihydrite-hematite recrystallization. Geochimica et Cosmochimica Acta, 206. 236-253 doi:10.1016/j.gca.2017.03.004 | Journal (article/letter/editorial) | | Geosciences, Adenauerring 20b, 76131 Karlsruhe, Germany b Helmholtz-Zentrum Dresden-Rossendorf (HZDR)...Ecology, Bautzner Landstraße 400, 01328 Dresden, Germany c The Rossendorf Beamline (ROBL) at ESRF, 38043...Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany * Corresponding author: Tel.: +49 721 608-44878;...toxic contaminant at slightly higher concentrations (Lenz and Lens, 2009). Of concern are therefore not only...anthropogenic factors (Dhillon and Dhillon, 2003; Lenz and Lens, 2009; Christophersen et al., 2012; Winkel |  | | Journal (article/letter/editorial) | | packets) filaments (5d,e) within a matrix of goethite. Goethite coated spherical fossilized bacteria and/or...and/or and filaments (d, e) within a matrix of goethite. Goethite coated spherical fossilized bacteria and/or...SiO2 Al2O3 Small Nodules (Figure 3) Limonite Goethite Hematite FeO(OH)·nH2O (FeOOH) (Fe2O3) 5.2 2.4...showing unpolished parts, revealing the presence of goethite micro-textures resembling bacterial cells, were...X-ray diffractometer (Bruker AXS GmbH., Karlsruhe, Germany), CuKα radiation at 40 kV, 40 nA, 0.020 degrees/s |  | Mitchell, Kristen, Couture, Raoul-Marie, Johnson, Thomas M., Mason, Paul R.D., Van Cappellen, Philippe (2013) Selenium sorption and isotope fractionation: Iron(III) oxides versus iron(II) sulfides. Chemical Geology, 342. 21-28 doi:10.1016/j.chemgeo.2013.01.017 | Journal (article/letter/editorial) | | iron oxides (2-line ferrihydrite, hematite and goethite) and iron sulfides (mackinawite and pyrite) at...http://dx.doi.org/10.1016/j.chemgeo.2013.01.017 Goethite and hematite are the most widespread iron (Fe)...and Se(VI) in the presence of the iron oxides goethite, hematite, and 2-line ferrihydrite, as well as...surface area (LSA) hematite (Bayferrox 105 M) and goethite (Bayferrox 910) were obtained commercially (see;...Immediately before the sorption experiments, the goethite and hematite were washed several times with ultrapure |  | | Journal (article/letter/editorial) | | Geowissenschaften, Wilhelmstraße 56, 72074 Tübingen, Germany e-mail: wolfgang.siebel@uni-tuebingen.de J. Rohrmüller...Bayerisches Landesamt für Umwelt, 95615 Marktredwitz, Germany II granitoids but likely represents the north-eastward...are well-exposed in the northern Vosges, the Palatinate Forest and the Bergsträsser Odenwald and similar...proposed by Bederke (1957) and two samples from the quarry “Am Stengerts” dated prior to this study, gave...II, exposed in the Seemann quarry near Hochstädten. Rocks from this quarry show a pronounced planar fabric |  | | Journal (issue) | | ...................................... 25 Susan Lenz Update ...........................................area of New York, USA. Austria, Switzerland, and Germany have produced many fine specimens. There are hundreds...appears to be the presence Amethyst with included goethite Brazil of minute amounts of aluminum along with...quartz variety include Val D’ Aoste, Italy and Germany. Wonderful milky “skeletal” iron-stained quartz...variety of inclusions such as rutile, hematite, goethite, schorl, the Chlorite Group minerals, clays, or |  | | Journal (article/letter/editorial) | | Geochemistry, Universitaetsstrasse 30, 95440 Bayreuth, Germany Received 21 May 2018; accepted in revised form...ferrihydrite to feroxyhyte (d0 -FeOOH) and goethite (a-FeOOH). Goethite has been widely observed as a product...of Sb(V) into the newly formed feroxyhyte and goethite via substitution for Fe(III). The results of this...Keywords: Antimonate; Ferrihydrite; Feroxyhyte; Goethite; Sediment; Shewanella; Soil 1. INTRODUCTION ...Fe(III)- and Fe(II)-bearing oxides, including goethite, lepidocrocite and magnetite (Hansel et al., 2003 |  | | Journal (article/letter/editorial) | | a r o u n d the w o r l d . Initially the name goethite was applied to a mineral, also called rubinglimmer...rubinglimmer, from Eiserfeld, near Siegen, in Hesse, Germany. According to Goethe (Goethes Werke, 1960) it was...Tabellen iiber das gasamte Mineralreich by Johann Georg Lenz in 1806. Although the name nearly disappeared before...of priority is the phase which should be called goethite, but to save undue confusion the name lepidocrocite...in a middle class family in Frankfurt am Main, Germany, on August 28, 1749. His parents, Johann Kaspar |  | | Journal (issue) | | 2005 President’s Message December, 2004 by Norman Lenz HGMS President, 2004 - 2005 F ellow HGMS Members...February General Meetings. In January, Norm and Susan Lenz will give us a guided tour of Alaska with a presentation...their experience with us. You’ll see glaciers from land, sea, and air, and two different gold mining operations...be native silver with a coating of acanthite or goethite. However, further visual investigation has convinced...hysingerite. The material generally looks much like goethite but the broken surfaces and spheres showed no |  | Chaikin, Leonid, Shoppert, Andrei, Valeev, Dmitry, Loginova, Irina, Napol’skikh, Julia (2020) Concentration of Rare Earth Elements (Sc, Y, La, Ce, Nd, Sm) in Bauxite Residue (Red Mud) Obtained by Water and Alkali Leaching of Bauxite Sintering Dust. Minerals, 10 (6) 500 doi:10.3390/min10060500 | Journal (article/letter/editorial) | | module Bruker XFlash 6 (Bruker Nano GmbH, Berlin, Germany). 2.2. Reagents All reagents used in this study...obtained using a GFL distiller (GFL mbH, Burgwedel, Germany). A model alkali liquor obtained was obtained by...95 ◦ C for 60 min in a 0.5 dm3 Lenz Minni thermostatic reactor (Lenz Laborglas GmbH & Co. KG, at 95 °С...a 0.5 dm3 Lenz Minni thermostatic reactor (Lenz Laborglas GmbH & Co. KG, Wertheim, Germany) fitted with...ports for a refrigerator and samplers. Wertheim, Germany) fitted with an overhead stirrer and ports for |  | Smith, Martin, Ray, Santanu, Broom-Fendley, Sam, Burgess, Heidi, Caplin, Jon (2017) Application of X-ray photoelectron spectroscopy in mineral deposit studies. Applied Earth Science, 126 (2) 93-94 doi:10.1080/03717453.2017.1306294 | Journal (article/letter/editorial) | | tilted and covers an area of approximately 200 km (Lenz et al. 2013). To the north-west it comprises a series...and how this might affect the results of dating (Lenz et al. 2013). A series of Nd isotope measurements...[Unpublished MSc project] Camborne School of Mines. Lenz C, Talla D, Ruschel K, Škoda R, Gotze J, Nasdala...and ultimately the occurrence of metallic Au in goethite. In the Eureka carbonatite, Namibia, altered |  | | Journal (article/letter/editorial) | | of the Hagendorf-Pleystein pegmatite province, Germany: with special reference to laser-ablation inductively-coupled...Natural Resources, P.O. Box 510163 D-30631 Hannover, Germany Frankfurt University, Institute of Geosciences...Frankfurt am Main, Germany 3 Bürgermeister-Knorr Str. 8, D-92637 Weiden i.d.OPf., Germany 2 [Received 17...supergene alteration. K EY WORDS : torbernite, goethite, ICP-MS, laser ablation technique, supergene alteration...alteration, element recycling, Hagendorf, Germany. Introduction * E-mail: Harald.Dill@bgr.de DOI: 10 |  | | Journal (issue) | | ...................................... 16 Susan Lenz Update ...........................................of iron, oxygen, and water makes hematite and goethite/limonite substitution common. (See next page.)...Hematite Pyrite ĺ Goethite/Limonite PbS ĺ PbSO4 FeS2 ĺ Fe2O3 FeS2 ĺ Fe2O3 Marcasite ĺ Goethite/Limonite Stibnite...Halite ĺ Thendrite Siderite ĺ Hematite Siderite ĺ Goethite/Limonite CaSO4x2H2O ĺ CaCO3 NaCl ĺ Na2SO4 FeCO3...be Dane Mark, the expanding Vik Mark northern Germany, the great tribes that compose Northern Poland |  | Hockmann, Kerstin, Planer-Friedrich, Britta, Johnston, Scott G., Peiffer, Stefan, Burton, Edward D. (2020) Antimony mobility in sulfidic systems: Coupling with sulfide-induced iron oxide transformations. Geochimica et Cosmochimica Acta, 282. 276-296 doi:10.1016/j.gca.2020.05.024 | Journal (article/letter/editorial) | | (BayCEER), Universitaetsstrasse 30, D-95440 Bayreuth, Germany 9 bSouthern 10 of Bayreuth, Bayreuth Center...and formation of 32 secondary Fe(III) oxides (goethite (FeOOH) and hematite (Fe2O3)). The formation of...University (Australia) to the University of Bayreuth (Germany). 231 This sample stabilization approach, which...software package (Bruker AXS, 250 Karlsruhe, Germany). Samples were mounted on sample holders in the...considered for 265 LCF included ferrihydrite, goethite, mackinawite, hematite, pyrite, tripuhyite, magnetite |  | | Journal (issue) | | April 28, 2009--Norman Lenz--Gemstone Inclusions: Good and Bad : Norman Lenz Continued on page 5 THE......................................... 16 Susan Lenz Update ...........................................almost all, and sticks it to a Bill which seizes more land than any prior bill, as I understand, and makes...whereYOU, ME and anyone else who hunts on any federal land (BLM, Forest Service, and on and on) and accidentally...worse, even if you didn’t get the fossil on federal land, but you have it, the burden is on you to prove |  | | Journal (article/letter/editorial) | | THE FORMER WILHELMINE MINE, SPESSART, BAVARIA, GERMANY Martin OKRUSCH§ Mineralogisches Institut, Universität...Würzburg, Germany Joachim A. LORENZ Graslitzer Str. 5, D–63791 Karlstein am Main, Germany Stefan WEYER...Senckenberganlage 28, D–60325 Frankfurt am Main, Germany Abstract The vein-type copper mineralization in...mine, Sommerkahl, Spessart, northwestern Bavaria, Germany, is hosted by metamorphic rocks of the Spessart...spionkopite and rare covellite, together with goethite, under decreasing temperatures and rising activity |  | | Journal (article/letter/editorial) | | Geosciences, Adenauerring 20b, 76131, Karlsruhe, Germany Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute...Ecology, Bautzner Landstraße 400, 01328, Dresden, Germany c The Rossendorf Beamline (ROBL) at ESRF, 38043...Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany e Technische Universität Berlin, Institute of...Geosciences, Ernst-Reuter-Platz 1, 10587, Berlin, Germany b A R T I C L E I N F O A B S T R A C T Editorial...humans, due to bioaccumulation in the food chain (Lenz and Lens, 2009; Munier-Lamy et al., 2007). Mobility |  | Malherbe, Cedric, Ingley, Richard, Hutchinson, Ian, Edwards, Howell, Carr, Andrew S., Harris, Liam, Boom, Arnoud (2015) Biogeological Analysis of Desert Varnish Using Portable Raman Spectrometers. Astrobiology, 15 (6) 442-452 doi:10.1089/ast.2014.1265 | Journal (article/letter/editorial) | | (integration time 20 s, 8 accumulations); and (G) quartz, goethite, and fluorescence in sample DV3 (integration time...effects (small lattice changes around Nd3 + sites) (Lenz et al., 2013). To prove the photoluminescent nature...785 nm). As shown in Fig. 7, a The presence of goethite [FeO(OH), 299, 393, and 555 cm-1] was detected...CV3 (noting that when the intensity related to goethite was small, only the band at 393 cm-1 was detected)...band of clay overlaps with the 299 cm-1 band of goethite (and falls in an area of the spectral shifts affected |  | | Journal (issue) | | 4 F April 2005 President’s Message by Norman Lenz HGMS President, 2004–2005 ellow HGMS Club Members...opal. Although this frog is also more ironstone (goethite) matrix than opal, it has a good size patch of...boulder opal carvings that were offered were all goethite matrix and no opal that you could see. So having...admiring glances from everyone, particularly First Lady Lenz, but they were not sure they could live with the...drafted by Paula Rutledge. oard members present: Norm Lenz; President and Past President; Paula Rutledge Faceting |  | | Journal (article/letter/editorial) | | University of Clausthal, 38678 Clausthal-Zellerfeld, Germany d Department of Exploration, Natural Resources...displacement of 40 km. According to several authors (e.g., Lenz et al., 1972; Bender, 1974; Barjous and Mikbel,...of pyrite, partially or completely altered to goethite, exhibit a pale to deep greenish or brownish color...Geosciences and Natural Resources (BGR), Hannover, Germany. Concentrations of major elements were determined...chalopyrite, partially or completely altered to rhythmic goethite and abundant disseminated hematite (Fig. 6a–d) |  | | Journal (article/letter/editorial) | | copper slag necessitates significant expanses of land, posing waste management issues [3,4]. Containing... Minerals 2022, 12, 1047 3 of 13 (Darmstadt, Germany) and used without further purification. Bidistilled...on the magnetic stirrer (IKA RT 5, Darmstadt, Germany), and the required temperature was set. Once the...thewas increase inLiron concentration was about mg Land The content ofleaching Fe3+ ions during the first...belongbelonging to goethite (α—FeO(OH)). This compound is formed following the process ing to goethite compound |  | Sapers, H. M., Osinski, G. R., Flemming, R. L., Buitenhuis, E., Banerjee, N. R., Tornabene, L. L., Blain, S., Hainge, J. (2017) Evidence for a spatially extensive hydrothermal system at the Ries impact structure, Germany. Meteoritics & Planetary Science, 52 (2) 351-371 doi:10.1111/maps.12796 | Journal (article/letter/editorial) | | hydrothermal system at the Ries impact structure, Germany H. M. SAPERS1,2*, G. R. OSINSKI1,2,3, R. L. FLEMMING1...diameter Ries impact structure in south-central Germany was one of the first terrestrial impact structures...directly overlying the Bunte Breccia at the Aum€ uhle quarry; and suevite ejecta at depth overlain by ~20 m...diameter Ries impact structure in south-central Germany (Fig. 1), the main source of heat is impactmelted...of suevite ejecta (red) including the Aum€ uhle quarry, and distribution of Bunte Breccia (blue). Also |
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