 | | Journal (issue) | | kristalle.com • Email: info@kristalle.com Harz Mountains, Germany by Günter Grundmann Thomas P. Moore Wendell...COVER: PROUSTITE, 3.5 cm, from St Andreasberg. Germany, found in 1899; ex collection of Richard Baldauf...St. Andreasberg Mining District, Western Harz Mountains, Niedersachsen, Germany ........................ Frontispiece: “Harz miners working in the lode” (Simonin, 1869). The Mining District Western Harz Mountains...Mountains Niedersachsen, Germany Günter Grundmann Eschenweg 6 D-32760 Detmold grundmann.g@gmx.de Thomas P. |  | | Journal (article/letter/editorial) | | calcic-amphibole-group, occurs in small cavities of an altered hematite-rich xenolith in the quaternary trachyandesite...Romania. Associated minerals are: titaniferous hematite, augite, phlogopite, enstatite, feldspar, tridymite...significant Ca (0.19 apfu) together with K and Na at the Am and A2 sites. The site-scattering value and bond-length...Fluoro-magnesiohastingsite crystals from Dealul Uroi, Hunedoara district, Romania, SEM photograph. Joanneum Graz (no....(including the original description of pseudobrookite). König et al. (2001) give a brief mineralogical description |  | | Book | | the Habsburg dynasty elite to the Lower Hungarian mining district around Banská Štiavnica (Schemnitz...(1747–1792), his future brother-in-law Albert Kasimir of Saxony-Teschen (1738–1822), and the top officials of the...Bergbuch 1764), a handwritten description of the Lower Hungarian mining districts containing sketches of...collection of graphic art. During the visit of the Lower Hungarian mining region the whole entourage was...the professionalization of mining education in Saxony see Felten (2020, 133–6). 3 4 JOHANNES MATTES |  | | Book | | Herbert Pöllmann Edited by Herbert Pöllmann and Uwe König Printed Edition of the Special Issue Published in...Malvern Panalytical B.V. Halle-Wittenberg Almelo Germany The Netherlands Editorial Office MDPI St. Alban-Anlage...the Martin Luther University in Halle (Saale), Germany. Herbert Pöllmann headed the research group for... Martin-Luther-University, Halle-Wittenberg, Germany, and the UFPA (Universidade Federal do Para), Belem...Minerals Industry Uwe König 1, * and Herbert Pöllmann 2,† 1 2 * † Citation: König, U.; Pöllmann, H. Value |  | Walter, Benjamin F., Gerdes, Axel, Kleinhanns, Ilka C., Dunkl, István, von Eynatten, Hilmar, Kreissl, Stefan, Markl, Gregor (2018) The connection between hydrothermal fluids, mineralization, tectonics and magmatism in a continental rift setting: Fluorite Sm-Nd and hematite and carbonates U-Pb geochronology from the Rhinegraben in SW Germany. Geochimica et Cosmochimica Acta, 240. 11-42 doi:10.1016/j.gca.2018.08.012 | Journal (article/letter/editorial) | | fluorite Sm-Nd and hematite and carbonates U-Pb geochronology from the Rhinegraben in SW Germany Benjamin F....fluorite Sm-Nd and hematite and carbonates U-Pb geochronology from the Rhinegraben in SW Germany, Geochimica...fluorite Sm-Nd and hematite and carbonates U-Pb geochronology from the Rhinegraben in SW Germany. Benjamin F...Geoscience, Wilhelmstraße 56, 72074 Tübingen, Germany 2 Goethe University Frankfurt, Insitute of Geosciences...Altenhoeferallee 1, D-60438 Frankfurt am Main, Germany 3 University of Göttingen, Geoscience Center, Sedimentology |  | | Report (issue) | | N:o 2. MANGANESE MINERALIZATION IN THE ULTEVIS DISTRICT, JOKKMOKK, NORTH SWEDEN PART 2: MINERALOGICAL...N:o 2. MANGANESE MINERALIZATION IN THE ULTEVIS DISTRICT, JOKKMOKK, NORTH SWEDEN PART 2: MINERALOGICAL...of the Manganese Mineralization in the Ultevis District contained a description of the geology and the...Among the mineral associations encountered in the district there were a number of interesting and unusual...minerals in a second part. In presenting Part 2,1 am desirous to point out that it merely has the char |  | Drodt, M., Trautwein, A. X., König, I., Suess, E., Koch, C. Bender (1997) Mössbauer spectroscopic studies on the iron forms of deep-sea sediments. Physics and Chemistry of Minerals, 24 (4) 281-293 doi:10.1007/s002690050040 | Journal (article/letter/editorial) | | NA L P A P E R M. Drodt ? A.X. Trautwein ? I. König ? E. Suess C. Bender Koch Mössbauer spectroscopic...about 37%, after which it remains constant to the lower end of the sediment core (at about 40 cm). The steep...and silicate minerals. Goethite and traces of hematite are observed only above the redox boundary, with...magnitude for the size of the largest goethite and hematite particles within the particle-site distribution...apart from the contributions due to goethite and hematite, resembles that of M. Drodt ? A.X. Trautwein (✉) |  | | Journal (article/letter/editorial) | | Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany. Abstract Ar ti cl e A comparison of Rietveld...bauxite-bearing regolith occurrence in the ALCOA bauxite mine at Juruti/Brazil was studied. The different minerals...as the Alfor-Fe substitutions in goethite and hematite, contributing to better understand chemical and...The bauxite deposit of Juruti is located in the Lower Amazon region (Fig 1), in the northwest portion...the Amazon River. Within the Juruti’s ALCOA mine district, a bauxite-bearing regolith is exposed in a |  | | Journal (article/letter/editorial) | | University, Welfengarten 1, D-30167 Hannover, Germany Departamento de Geología, Universidad Nacional...and Science, Goldschmidtstraße 3, D-37077 Göttingen, Germany d Geoscience Centre of the Georg-August University...University, Goldschmidtstrasse 3, D-37077 Göttingen, Germany b a r t i c l e i n f o Article history:...this joint study render the Patagonian fluorite district a reference type of fluorite in an epithermal system...(Barbieri et al., 1987; Hein et al., 1990) and Germany (Dill, 1985; Schwinn and Markl, 2005; Dill and |  | van der Zee, Claar, Slomp, Caroline P., Rancourt, Denis G., de Lange, Gert J., van Raaphorst, Wim (2005) A Mössbauer spectroscopic study of the iron redox transition in eastern Mediterranean sediments. Geochimica et Cosmochimica Acta, 69 (2) 441-453 doi:10.1016/j.gca.2004.07.003 | Journal (article/letter/editorial) | | non–steady-state diagenesis. The crystalline iron oxide hematite, identified at both sites by room temperature...allowed identification of the sedimentary Fe oxides: hematite, maghemite, and nanophase goethite. Copyright...demonstrated the presence of small amounts of hematite and goethite in Peru Basin sediments using Mössbauer...clay-bound Fe(II)/Fe(III) transition (Lyle, 1983; König et al., 1997; Haese et al., 2000). Structural Fe(II)...by nitrate, as shown for Peru margin sediments (König et al., 1999). Dissolved Fe2⫹ in the pore water |  | | Journal (article/letter/editorial) | | for Grade Definition and Process Optimization Uwe König Malvern Panalytical B.V., Lelyweg 1, 7602 EA Almelo...koenig@malvernpanalytical.com Citation: König, U. Nickel Abstract: Nickel laterite ore is used...pyrometallurgically, lower-grade nickel deposits (<1.3% Ni) are processed mainly hydroallurgically, lower-grade nickel...mainly hydrometallurgically. pyrometallurgically, lower-grade nickel deposits (<1.3% Ni) are processed mainly...22 with lower coefficients made up mixing mineral associations from cluster one and with lower coefficients |  | Tan, Decan, Zhu, Jian-Ming, Wang, Xiangli, Johnson, Thomas M., Li, Shehong, Xu, Wenpo (2020) Equilibrium fractionation and isotope exchange kinetics between aqueous Se(IV) and Se(VI) Geochimica et Cosmochimica Acta, 277. 21-36 doi:10.1016/j.gca.2020.03.017 | Journal (article/letter/editorial) | | al. 2015a,b,c; Stüeken, 2017; Kipp et al., 2017; König et al., 2019), and to investigating the origin and...close to freshwater river and lake systems but is lower than typical ocean pH of ~8 or higher than hydrothermal...von Strandmann et al., 2015; Kipp et al., 2016; König et al., 2019; Kurzawa et al., 2019). The pH value...this study to natural 14 conditions with much lower Se concentrations is difficult because we did not...derived from the results of EXP 10 to estimate the lower limits of t1/2 and tmin for isotope exchange between |  | Scholten, Lea, Watenphul, Anke, Beermann, Oliver, Testemale, Denis, Ames, Doreen, Schmidt, Christian (2018) Nickel and platinum in high-temperature H2O + HCl fluids: Implications for hydrothermal mobilization. Geochimica et Cosmochimica Acta, 224. 187-199 doi:10.1016/j.gca.2018.01.005 | Journal (article/letter/editorial) | | Geosciences, Ludewig-Meyn-Str. 10, 24118 Kiel, Germany b University of Hamburg, Fachbereich Geowissenschaften... Institut, Grindelallee 48, D-20146 Hamburg, Germany c CNRS, Univ. Grenoble Alpes, Inst NEEL, F-38000...Earth Materials, Telegrafenberg, 14473 Potsdam, Germany *Corresponding author. E-mail address: scholten@min...recorded Ni concentrations in the fluid were much lower than the Ni solubility in the corresponding experiments...to Ni in footwall-type deposits in the Sudbury District and the growth of large sperrylite crystals are |  | | Journal (article/letter/editorial) | | it is no different. Quality control of ore in the mine and the Bayer process is done almost exclusively...inaccuracies due to amorphous content [10,11,13–15]. König et al. [10] demonstrated the mineralogical quantification...saturation percentage (BSP)) [28]. From XRD data, König et al. [29] demonstrated the utilization of PLSR...present in some samples, but in minor content. Hematite (d104 = 2.69 Å) is observed as the main iron mineral...considering 8 components, the explained variance remains lower than 75%. In contrast, Melo et al. [19] achieved |  | | Journal (article/letter/editorial) | | Using XRD Uwe König 1, * and Sabine M. C. Verryn 2 1 2 * Citation: König, U.; Verryn...that higher intensity data is more important than lower intensity data. Therefore, fitting the peaks is...heavy mineral sand mine in South Samples for for this from a heavy mineral sand mine in South AfAfrica...the the mine. Minor additional products such as magnetite concentrates are also marketed. mine. Minor...0 1 Clinopyroxene 1 13 0 Ilmenite 46 35–55 2 1 Hematite 2 1 1 Garnet 46 45–54 72 70–75 3 Figure 10. Average |  | | Book | | Martin Meschede Laurence N. Warr The Geology of Germany A Process-Oriented Approach Regional Geology...Reviews Series editors Roland Oberhänsli, Potsdam, Germany Maarten J. de Wit, Nelson Mandela University, Port... Martin Meschede • Laurence N. Warr The Geology of Germany A Process-Oriented Approach 123 Martin Meschede...and Geology University of Greifswald Greifswald, Germany Laurence N. Warr Institute of Geography and Geology...Geology University of Greifswald Greifswald, Germany ISSN 2364-6438 ISSN 2364-6446 (electronic) Regional |  | | Journal (article/letter/editorial) | | Martin-Luther Halle-Wittenberg University, 06108 Halle, Germany; boiadeiro.negrao@gmail.com (L.B.A.N.); tiago.cortinhas-alves@geo...gibbsite and goethite and minor quantities of hematite, anatase, and quartz. The chemistry derived from...locally have high contents of gibbsite, with minor hematite, goethite, and anatase. Their high alumina contents...contents, associated with with minor hematite, goethite, and anatase. Their high alumina contents, associated...the of the sequences in each pilot mine. sequences in each pilot mine. The samples are named according |  | | Journal (article/letter/editorial) | | deposit of Přísečnice was mined (SW of the Fischer Mine). Key words: Bohemian Massif, Saxothuringian Zone...economic geology, history of mining, magnetite, hematite, Přísečnice, Černý Potok, Mezilesí (Orpus), Měděnec...Černopotockým vrReuss (1801), Jokély (1857) a Herzberg (1910). Reuss chem a Kryštofovými Hamry převládají...(směr V - Z), Davidgang, Baumgartner Gang, Drei König, Joseph Gang, Elisabeth Gang, Concordia Gang, Himmlisch...protože přístupné partie rudní žíly byly vydobyté (Herzberg 1910). Od roku 1954 byl v oblasti Přísečnice prováděn |  | Poblete, J. A., Bissig, T., Mortensen, J. K., Gabites, J., Friedman, R., Rodriguez, M. (2014) The Cerro Bayo District, Chilean Patagonia: Late Jurassic to Cretaceous Magmatism and Protracted History of Epithermal Ag-Au Mineralization. Economic Geology, 109 (2) 487-502 doi:10.2113/econgeo.109.2.487 | Journal (article/letter/editorial) | | Economic Geology, v. 109, pp. 487–502 The Cerro Bayo District, Chilean Patagonia: Late Jurassic to Cretaceous...Abstract The Cerro Bayo low sulfidation epithermal district is located in the Aysén region, Chilean Patagonia...zircon) are present in the western part of the district at Laguna Verde. Silver and gold mineralization...fault. The oldest episode of mineralization in the district is similar in age to the youngest epithermal deposits...Palacios, 1999; Townley et al., 2000). The Cerro Bayo district is situated at 46°30'S and 71°50'W in Chile, near |  | | Journal (article/letter/editorial) | | study: Fe2+ determination in iron ore sinter Uwe König,a) Thomas Degen, and Nicholas Norberg PANalytical...and Van den Berg (2008) includes as main phases hematite (Fe2O3), magnetite (Fe3O4), ferrites [mostly silico-ferrite...Magnetite is preferred to hematite because of volume changes during magnetite-to-hematite conversion. The larnite...for comparison with wet chemistry and PLSR data. König et al. S80 Figure 4. Comparison of wet chemistry...sinter samples are 2+ magnetite (Fe3+ larnite hematite (Fe3+ 2 O3), 2 Fe O4), (Ca2SiO4, also known as |  | | Journal (article/letter/editorial) | | analysis Academic Editors: Herbert Pöllmann, Uwe König and Yosoon Choi 1. Introduction Received: 2 June...calculating the duration of extraction period of a mine. Intimate knowledge of the mineralogical assembly...technique for the identification and classification of hematite crystals in iron ore using optical microscopic...drill-core mineral mapping [67,68] and mapping of mine face geology [53]. In [87], a three-stage method...An automatic method for the classification of hematite textures in Brazilian iron ores according to their |  | | Journal (article/letter/editorial) | | 2002; Lorand and Alard, 2010; Patten et al., 2013; König et al., 2014, 2015). Comparison of the Se/Te ratio...however, suggest the opposite sense of partitioning (König et al., 2012). In either case, results indicate...metasomatism. Indeed, Lorand and Alard (2010) and König et al. (2014) have argued that such effects have... f g e d Relative proportion of sulfide to hematite added to experiments. Run product phases; Sulf...incompatible in MSS than Se, with DMSS/SulLq of 0.07 or lower, with values increasing somewhat with M/S. The ratio |  | | Book (edition) | | See Gypsum. Alalite . See Pyroxene. Alaskaite, König. [(Ag,Cu , Pb] As.Bi, Ss. Alaun . See Kalinite...nitré. See Nitre . Alkali volatil muriatique. See Sal Am moniac. Alkali volatil vitriolé. See Mascagnite...Tescher . macherite . Ammoniaque muriatée. See Sal-am moniac . Ammoniaque phosphatée. See Stru vite ... Wall. ; skorl. TREMOLITE, Pini. ( magnesia-lime am phibole ) : Amphibole blanc, Haüy ; amphibole blanche...See Amphi bole . Amphibole macrodiagonalis. See Am phibole. Amphibole medius . See Amphibole. Amphibole |  | | Journal (issue) | | der Universität , Goldschmidtstraße 1, D-3400 Göttingen. Telefon (Durchwahl) 05 51-39 38 51 Fachberater...Paläontologie: Dr. Hans Jahnke, Göttingen Technische Redaktion: Hans Damrau, Göttingen Für den Inhalt der in...(BIF) dem häufigsten Lagerstättentyp - dargestellt am Beispiel Nigerias . . . . . . . . . . . . . . . ...(BIF), dem häufigsten Lagerstättentypdargestellt am Beispiel Nigerias Von Arno MÜCKE Dem Ehrenmitglied...org-August U niversität, Goldschmidtstraße 1, 3400 Göttingen 322 MOCKE, A.: Entstehung und Entwicklung |  | | Journal (issue) | | 51 - 8805 Technische Redaktion: Hans Damrau . Göttingen Fu r den In alt der in diesem Heft verolfentlichten...5-+ Cu 11 Fe 3S 10 -+ 2Cu 5 FeS• + CuFeS 2 • Ida-Mine, SWAfrika. (Vergr. 250 X). Aufnahme: P. RAMDOHR...Endes eine Verdrängungs-Pseudomorphose vor. Temagami-Mine, Ontario. (Vergr. 250 X . Schliff nach einer Oktaederfläche...auf. Der Vollständigkeit halber sei angefügt, daß am Tageslicht - wie beim Photographieren - bald feinverteiltes...Schalkenmehren, dicht am Meer gelegen, war unser vorbestelltes Quartier. \ Am Nachmittag des 2.4.1982 |
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