 | | Journal (article/letter/editorial) | | Ohio 44118 janet_clifford@att.net Inesite Wessels Mine, Northwest of Kuruman, Kalahari Manganese District...Hill mines, New South Wales, Australia; Hale Creek mine, Trinity County, California; Kalahari manganese...Africa; and Fengjiashan mine, Hubei Province, China. Of these, the Wessels mine within the Kalahari manganese...Schneider in 1887. Manganese ore from a mine near Nanzenbach, Hesse, Germany, yielded short prismatic crystals...calcite veins in iron ore at the Harstigen (Harstig) mine, Pajsberg, Persberg district, Sweden. He applied |  | | Journal (article/letter/editorial) | | identification of potential biominerals such as δMnO , todorokite, birnessite, jacobsite and ranciéite [26] or...(a) the potential biominerals such as δMnO2, todorokite, birnessite, jacobsite and ranciéite [26] or...depicted in (a), (e) BSE image of shards coated by todorokite-like mineralization. Spectra acquisition points...are marked and correspond to Table 1. Dendritic todorokite is shown in the inset (analysis 81), (f) Glass...glass; Fgl—fresh volcanic glass; Tod—aggregates of todorokite composition; Band—Mn-Fe bands; MnC—Mn-Fe coatings |  | Wegorzewski, Anna V., Grangeon, Sylvain, Webb, Samuel M., Heller, Christina, Kuhn, Thomas (2020) Mineralogical transformations in polymetallic nodules and the change of Ni, Cu and Co crystal-chemistry upon burial in sediments. Geochimica et Cosmochimica Acta, 282. 19-37 doi:10.1016/j.gca.2020.04.012 | Journal (article/letter/editorial) | | Resources (BGR), Stilleweg 2, D-30655 Hannover, Germany. Anna.Wegorzewski@bgr.de b BRGM, 3 Avenue Claude...phyllomanganates (7 Å and 10 Å vernadite and Fe-vernadite); todorokite is a minor phase, if present at all. In contrast...deeply buried nodules predominantly consist of todorokite, which increases in abundance with depth in the...shallow sediment, phyllomanganates transform to todorokite, probably through the combined action of time...sediment depth (>500 cm) consist primarily of todorokite and additionally show signs of dissolution. The |  | | Journal (article/letter/editorial) | | pages 861-369, 1988 Rietveld refinement of the todorokite structure Jpprnnv E. Posr Department of Mineral...using powder X-ray data, of the structuresof todorokite samples from South Africa and Cuba have confirmed...probably accommodate the larger cations found in todorokite, e.9., Mg2+, Mn3+,Cu2+,Ni2*, etc. Iwrnooucrrou...sometimesplaty habit exhibited by todorokite supported The crystal structure of todorokite has been a subject the...manganesenodules and the possi- Burki, 1975) maintained that todorokite was in fact not bility that it is the host for |  | | Journal (article/letter/editorial) | | Zn2+ with Mn(III/IV) Oxides Formed in Metal-Rich Mine Waters Javier Sánchez-España 1, * 1 2 * and Iñaki...highly concentrated, metal-rich mine waters. For this purpose, mine water samples collected from the...manganite) and Mn(III/IV) (e.g., birnessite, todorokite) to Mn(IV) (e.g., asbolane). Whole-precipitate...phase. We evaluate these data in the context of mine water pollution treatment and recovery of critical...manganese oxides; trace metals; coprecipitation; mine waters; sorption 1. Introduction The potential |  | | Journal (article/letter/editorial) | | pp. 186-206 AURORITE, ARGENTIAN HYDROUS TODOROKITE, SILVER-BEARING MANGANESE ARTHUR OXIDE AND...calcite" associatedwith silver oresat the Aurora mine (TreasureHill), Hamilton, Nevada. Specifically these...Ca,Pb,K2,Cu,Mn+2)Mna+40•ß3H20; (2) argentian todorokite (Ag2,K2,Ca,Ba,Na2,Cu,Pb)Mn4+400.5H20; and (3)...powder diffraction data for aurorite and argentian todorokite. All chemical analyses were done with the electron...manganese oxideswererecognized. onlyat the Aurora mine, Hamilton, Nevada, although black calcite veins |  | | Report (volume) | | BERNHARD BUHN Justus-Liebig Universit~it, Giessen, Germany and SOMNATH DASGUPTA Jadavpur University,...mineralization in the PlioceneQuaternary Calatrava Region (central Spain) 29 43 81 91 105 117 123 139...Universitdt, Senckenbergstrasse 3, D-35390 Giessen, Germany 4 Department of Geological Sciences, Jadavpur...polymetallic oxides) meetings in Germany, the UK and India. The IGCP 318 session in Germany was held in Freiberg...pyrolusite, cryptomelane, psilomelane, hollandite and todorokite, whereas others, formed from relatively higher |  | | Journal (article/letter/editorial) | | minerals in crusts, namely hexagonal birnessite, todorokite and ferrihydrite, using XAS. We compliment our...hexagonal birnessite, but not during sorption to todorokite, triclinic birnessite and ferrihydrite. Tl(III)...the main Mn-bearing phases are birnessite and todorokite (e.g., Burns and Burns, 1977). These minerals...of sheets of edgesharing MnO6 octahedra, while todorokite is a tectomanganate (tunnel-type), consisting...shared corners into a 3D framework. In ideal todorokite this framework is permeated by 3 3 octahedra-wide |  | | Journal (issue) | | ......................272 H. Earl Pemberton The Mark Chance Bandy Mineral Collection...................PARAVAUXITE, Contacto vein, Llallagua, Bolivia, Mark C. Bandy collection. The crystal spray is 2 cm across...50 to $ 1,000.00 HYDROBORACITE from the Thompson mine, Death Valley, Calif. Some spec imens w ith colemanite...75C to $7.50 ... Our visit to the charming “Lake Region” secured fine linarite groups, 15C to $3.50, also...visited, especially those of Hungary, Switzerland, Germany, France, etc., but space does not allow the men |  | | Journal (article/letter/editorial) | | Umweltgeologie Malteserstr. 74–100, D-12249 Berlin, Germany e-mail: akrumgeo6fub46.zedat.fu-berlin.de J. R... Im Neuenheimer Feld 366, D-69120 Heidelberg, Germany zation episodes recorded in Pacific crusts. The...sensors) made by ME-Meerestechnik Elektronik (Kiel, Germany) installed on RV Sonne was used. The following...also contains minor todorokite and the maximum Al content. This occurrence of todorokite may indicate that...be indicated by the occurrence of hydrothermal todorokite and low or unusual trace metal concentrations |  | | Journal (article/letter/editorial) | | Kurosegawa and Southern Chichibu belts. The southernmost region of the Shikoku is defined by the Shimanto belt occupying...consisting of cryptomelane–pyrolusite– nsutite–todorokite–birnessite occur in chert. This type of ore occurs...calcite. Hydrous manganese oxide minerals such as todorokite, takanelite and birnessite also occur locally...manganese minerals such as vernadite, birnessite, todorokite and X-ray amorphous Mn-bearing ferric oxyhydroxides...points is the fossil age of hemipelagite which should mark the arrival time of the ocean plate at the trench |  | | Report (chapter) | | Malteserstrasse 74-100, Haus B, D-12249, Berlin, Germany 3 US Geological Survey, WHOL Quissett Campus, Woods...Potsdam, Telegrafenberg A-50, D-14473, Potsdam, Germany 5 Korea Ocean Research and Development Institute...of a 10A manganite, which we will refer to as todorokite and a 7,~ manganite, which we will refer to as...controversial (Burns et al. 1983; Usui et al. 1989). Todorokite, with X-ray reflections at 1.4, 2.4, 3.3, 4.8...literature as birnessite may have had an in situ todorokite mineralogy. Clastic grains and authigenic minerals |  | | Book | | countries involved are the United States, Japan, West Germany and France. In November 1972, the Hughes Glomar...average composition of surface nodules from the region in which they were found. Similarly, Goodell et...seamount environment. The common occurrence of todorokite in Blake and Campbell Plateau nodules ENVIRONMENTS...principal mineral, with subordinate amounts of todorokite (Cronan, 1967; Glasby, 1972a; Scott et al., 1972a)...Seamount Province off Mexico, adjacent to an arid region in which there are few rivers, this difference |  | Marino, Egidio, González, Francisco Javier, Kuhn, Thomas, Madureira, Pedro, Wegorzewski, Anna V., Mirao, Jose, Medialdea, Teresa, Oeser, Martin, Miguel, Catarina, Reyes, Jesús, Somoza, Luis, Lunar, Rosario (2019) Hydrogenetic, Diagenetic and Hydrothermal Processes Forming Ferromanganese Crusts in the Canary Island Seamounts and Their Influence in the Metal Recovery Rate with Hydrometallurgical Methods. Minerals, 9 (7) 439 doi:10.3390/min9070439 | Journal (article/letter/editorial) | | Resources (BGR), Stilleweg 2, D-30655 Hannover, Germany HERCULES Laboratory, Évora University, Largo Marquês...Mineralogie. Callinstraße, 3, 30167 Hannover, Germany Central Laboratories, Geological Survey of Spain...and hydrothermal deposits show the presence of todorokite, asbolane and buserite [1,19–22]. Hydrogenetic...initiated their deposition at least 77 My ago in this region [14,21,34,35]. In previous decades, several studies...10 Å buserite) or tectomanganates (e.g., 10 Å todorokite) [42,44–49]. This line of work can help to select |  | | Journal (article/letter/editorial) | | pyrolusite, cryptomelane, romanechite (psilomelane), todorokite, quartz, kaolinite, goethite and hematite. Probably...Probably with the exception of todorokite, all other mentioned phases can occur as primary and/or supergene...been shown to produce further manminerals (e.g. todorokite and ganese lithiophorite). A slightly different...formation of laterite, producing lithiophorite, todorokite, nsutite and psilomelane were later processes...Cretaceous fault block movements have occurred in the region (Frakes, 1979 ) . The basement rocks are overlain |  | Yu, Qianqian, Ohnuki, Toshihiko, Kozai, Naofumi, Sakamoto, Fuminori, Tanaka, Kazuya, Sasaki, Keiko (2017) Quantitative analysis of radiocesium retention onto birnessite and todorokite. Chemical Geology, 470. 141-151 doi:10.1016/j.chemgeo.2017.09.008 | Journal (article/letter/editorial) | | radiocesium retention onto birnessite and todorokite MARK Qianqian Yua,b,⁎, Toshihiko Ohnukib,c, Naofumi...environment, the Cs adsorption onto birnessite and todorokite was investigated for a wide range of concentrations...birnessite showed a higher Cs adsorption capacity than todorokite, most of the Cs adsorbed onto birnessite was...Two types of adsorption sites were observed for todorokite. Despite low density, the selectivity coefficient...approximately 34% of the adsorbed Cs was residual in the todorokite after the sequential extraction; this value was |  | | Journal (article/letter/editorial) | | Accepted Manuscript Nucleation and growth of todorokite from birnessite: Implications for tracemetal... S., Peacock, C.L., Nucleation and growth of todorokite from birnessite: Implications for trace-metal...the journal pertain. Nucleation and growth of todorokite from birnessite: Implications for tracemetal...mild hydrothermal conditions, tectomanganate todorokite. birnessite undergoes transformation to ...birnessite, analogous to marine birnessite, into todorokite under a mild reflux procedure, developed to mimic |  | | Report (volume) | | ____________________________ Slate of the York region-____________________________________ Argillaceous...limestone which overlies the "slate of the York region" ____ 3. Very thin bedded argillaceous limestone... 7. Tin and tungsten reserves of the Lost River mine-___-_ 8. Quantitative spectrographic analyses of...euclase, bertrandite, helvite, phenakite(?), todorokite, and hematite. Beryl occurs sparsely in late...features. A base camp was established at the Lost Elver mine, and field camps were placed and reached by light |  | | Journal (article/letter/editorial) | | Digital elevation map showing landscape of the Zunyi mine and surrounding areas. Data are from International...Blocks during the Triassic (GBGMR, 1987). This region is characterized by a humid subtropical climate...are larger than those of sample ZY20 (f). (h) Todorokite occurring as fine needle-like crystals. Cm: cryptomelane...lithiophorite (LiAl2[Mn4+ ]O6[OH]6), 2 Mn and todorokite ([Ca,Na,K]X[Mn4 +,Mn3 +]6O12·3.5H2O) (Post, 1999)...radiating crystals perpendicular to the growth bands. Todorokite is characterized by fine needle-like crystals |  | Zawadzki, Dominik, Maciąg, Łukasz, Blasco, Iker, González, Francisco Javier, Wernette, Benjamin, Marino, Egidio, Kozub-Budzyń, Gabriela A., Piestrzyński, Adam, Wróbel, Rafał J., McCartney, Kevin (2022) Geochemistry and Mineralogy of Ferromanganese Crusts from the Western Cocos-Nazca Spreading Centre, Pacific. Minerals, 12 (5) 538 doi:10.3390/min12050538 | Journal (article/letter/editorial) | | These crusts consist mostly of mixed birnessite, todorokite-buserite, and Mn-(Fe) vernadite with traces of...related with formation of hydrothermal plume over the region. This process occurred during further interactions...Center (GSC) located east of the Cocos-Nazca (C-N) region, at approximately 98◦ W, extensively studied in...538 3 of 31 cated the presence of intermixed todorokite-buserite and birnessite, with lesser unidentified...produced a V-shaped gore, the bounding faults of which mark the transition from the rough C-N topography to |  | Del Rio Salas, R., Ruiz, J., Ochoa-Landín, L., Noriega, O., Barra, F., Meza-Figueroa, D., Paz-Moreno, F. (2008) Geology, Geochemistry and Re–Os systematics of manganese deposits from the Santa Rosalía Basin and adjacent areas in Baja California Sur, México. Mineralium Deposita, 43 (4) 467-482 doi:10.1007/s00126-008-0177-3 | Journal (article/letter/editorial) | | Abstract The manganese ores in the Santa Rosalía region, western Mexico, are mainly stratiform horizons...oxide minerals include pyrolusite, cryptomelane, todorokite, hollandite, jacobsite, and pyrochroite. Trace...for the manganese deposits from the Santa Rosalía region. The ore deposition style indicates an exhalat...Introduction The manganese ores in the Santa Rosalía region, western Mexico, are mostly hosted in the Boléo...recognized here include pyrolusite, cryptomelane, todorokite, hollandite, jacobsite, and pyrochroite. The |  | | Journal (article/letter/editorial) | | indicates that the bulk sample is 70% smectite, 4% todorokite, 13% microlaminated material, and i% fish debris...microlaminated iron-rich material over a homogeneous dense todorokite core. The two micronodule compositions can be...reveals the presence of "smectite", goethite, todorokite, and barite; as well as trace amounts of quartz...are referred to as todorokite and an iron-rich microlaminated phase. The todorokite typically occurs as...X-ray diffraction analysis, which reveals only todorokite in these grains, and their chemical composition |  | | Journal (article/letter/editorial) | | Ba, Mn, and Be. The hydrothermal alteration zones mark extended fault zones. All researchers, which studied...shaped potassic rhyolite and rhyodacite bodies, which mark segments of extended faults localized close to the...along thin and peculiarly bent fluidal bands; they mark centers of shelled spherulites and spheroloids (Fig...highK rhyolite (Fig. 1, samples 6, 12, 74) and mark fragments of diagonal fault zones and their intersections...admixtures (2.0 and 0.5 wt %, respectively). Todorokite–chlorite fine mixture, which forms col loform |  | | Journal (issue) | | Isa District, Queensland Part 3 - The Mount Oxide mine ............ B. Day & B. Beyer 3 Zeolites and...England The Francis Collection A. Pring 21 Post mine sulphates from Teutonic Bore base metal deposit...Mimetite crystals from Sabine's Shaft, Mount Bonnie mine. 44 km north-west of Pine Creek. Northern Territory...km t N LEGEND Figure 3: Plan of the Mt Oxide mine. Main Road Dirt Road GEOLOGY Track Camel Pad...Pad (1908) Figure 2: Map of the Mt Oxide mine region. Henry eventually pegged the claim in 1900 and placed |  | | Journal (article/letter/editorial) | | statistically computed interelement relationships. Todorokite, very poor in Fe, is the main Mn phase in the...The majority of these samples was taken from a region extending from 135ow to 155°W and from 5 ° N to...the Pacific Ocean rise (Fig. I). The surveyed region was named "Sonne Basin" and was investigated during...units: a marginal southern to southeastern mountain region and a basin which shows a smooth hill topography...averages about 4150 m. The Sonne Basin lies in the region bordering the zone of high biological productivity |
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