 | | Book (edition) | | Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Earth Science Department / College of Science,...Feld 236, D-69120 Heidelberg, Germany Sodenstr. 19, D-12309 Berlin, Germany Graslitzer Str. 5, D-63791 Karlstein...Karlstein am Main, Germany Ludwig-Maximilians Universität, Department für Geo- und Umweltwissenschaften...Ressourcengeologie, Luisenstr. 37, D80333 München, Germany Bundesanstalt für Geowissenschaften und Rohstoffe...Rohstoffe (BGR), Stilleweg 2, D-30655 Hannover, Germany Dr. Salah Al-Khirbash Prof. Dr. Rainer Altherr & |  | | Book (edition) | | Hollandite IV/D.08-60 IV/D.08-70 Coronadite IV/D.09-10 Todorokite IV/D.09-20 Woodruffite IV/D.09-30 Romanéchite...Affiliation/Address Luzerner Str. 10-12, D-12205 Berlin, Germany – Freie Universität Berlin, FB Geowissenschaften...Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Bundesanstalt für Geowissenschaften und Dr. Frank...Stilleweg 2, D-30655 HanDr. Thomas Oberthür nover, Germany Dr. Thomas Kenkmann Museum für Naturkunde der ... zu Berlin, Invalidenstr. 43, D-10115 Berlin, Germany Prof. Dr. Robert Marschik & Ludwig-Maximilians |  | FAN, Chenzi, WANG, Ling, FAN, Xingtao, ZHANG, Yu, ZHAO, Linghao (2015) The mineralogical characterization of argentian cryptomelane from Xiangguang Mn–Ag deposit, North China. Journal of Mineralogical and Petrological Sciences, 110 (5) 214-223 doi:10.2465/jmps.150119 | Journal (article/letter/editorial) | | which can reach 7.5 wt% (Ag2O). An argentian todorokite (3.9 wt% Ag2O) and unnamed silver bearing lead...native silver adsorbed on the external surfaces of todorokite and of the amorphous phase. All these kinds of...a few kinds such as cryptomelane, coronadite, todorokite and chalcophanite carry most of the silver (Radtke...215 mation and rhyolitic ignimbrite and granite porphyry in Houcheng Formation of Jurassic (Liu et al....rhyolitic ignimbrite and intrusive rocks of granite porphyry. Quartzitification – clayization – limonitization |  | | Journal (article/letter/editorial) | | conditions leading to the supergene enrichment of porphyry copper systems in the Chilean Andes. Bird (1988)...complete history of continental weathering in a region. Annu. Rev. Earth Planet. Sci. 1999.27:183-229...coronadite, cryptomelane, birnessite, romanéchite, todorokite, and vernadite are some of the complex Mnoxides...Hollandite Cryptomelane Coronadite Romanechite Todorokite Vernadite (Ba,K)1-2Mn8O16.xH2O (K,Ba)1-2Mn8O16...Hollandite Hollandite Hollandite Romanechite Todorokite Disordered birnessite? Birnessite Birnessite |  | | Journal (article/letter/editorial) | | andNaturalResources, D-30631Hannover,P.O.Box51 01 53, Germany Abstract After the Variscanorogeny,fromthe upperCarboniferous...bituminousmatter have been distinguished Miillenbach,Germany);D6hlen basin(Freital, Ger- organicchemistry(Dill...Apart from the many);Stockhelm basinandWeidenbasin,Germany; location of U mineralization in the lacustrine...M•neffe - Luxembourg, / E-France (Lorraine) Germany, Burgsondstein / Boyreuth(D) U • - Keuper:•'...• Kupferschiefer (Cu) (Cu) Cu,Pb, Zn[Pb-Zn) Germany, Poland ICu, Pb Cu [Zn, u Cu Nova Rudo (PL), |  | | Journal (article/letter/editorial) | | sulphide, quartz and 'black calcite' (calcite and todorokite) has resulted in the formation of the assemblage...assemblage MnO-gel-(amorphous Mn-oxide)-todorokite-azurite-goethite-cerussite in the veins and the assemblage...vein walls (marked in white) is lined by fine todorokite (black) in a black calcite vein. Xylo, Staren...evidence from vein mineralisation throughout the region, although the best developed sulphide-rich mineralisation...58 0.48 0.08 0.05 0.07 Table 2. Analyses of todorokite pseudomorphs after rhodochrosite in weathered |  | | Journal (article/letter/editorial) | | Dendritescollectedin undergroundmine workings are todorokite. Manganesestreamdepositsare generallybirnessite...snall sandsrone outcrop and desert pavenenE dacite porphyry cobbles coatidg on basalr ourcrop 5 coatlng...oxide, No. 18, was unambiguously identified as todorokite, (Mn,Ca,Mg)MnrOr'H'O (Fig. 3). We have found...Infrared spectra identifying todorokite in manganese dendrite No. l8: (A) todorokite standardNo. 55, 1367ointensity;...1979c), although it is easily confused with some todorokite samples. Most todorokites have spectra distinct |  | | Journal (article/letter/editorial) | | from Kitzbachtal, Austria, and Richelsdorf, West Germany. 349 Downloaded by [Virginia Tech Libraries]...from an aggregate of plates from Rengersdorf. region. Samples from the Buruktal, Shcherbakov, and Kempirsai...Lithiophorite (kakochlor), Schneeberg, Saxony (East Germany). than the Wadsley formula requires, containing...in intergrowth with cryptomelane, Saxony (East Germany). FIGURE 7. Lithiophorite, Banska Shtyavnitsa,...intergrowths with cryptomelane (Fig. 9). In the region of Groot Eylandt (Australia), lithiophorite is |  | | Journal (article/letter/editorial) | | ALABASTER (C. J.), An occurrence of brucite at Merehead quarry, Cranmore, Somerset, 4o0 ALEXANDER (P. O.) and...inclusions in, i55; CIrich hydroxy-fluor-, a guide to porphyry copper deposits, 288; Assynt, Scotland, Cl-poor...thermal expansion of tugtupite, 13o Hepworth Iron Co. quarry, Penistone, Yorkshire, francolite, magnesian siderite...Janggun mine, Bonghwa, Korea, janggunite, nsutite, todorokite, rhodochrosite, 519 Janggunite, Korea, anal....Mendips, Somerset, chloroxiphite, 357 Merehead quarry, Cranmore, Somerset, brucite, blixite, hydromagnesite |  | | Journal (article/letter/editorial) | | Prefecture, Jian-Bao Environments of Manganese to Todorokite, West from Urizukui, Japan LI and Goro SHIBUYA...composed area of Abu mainly of chert by quartz-porphyry dyke hydrothermal The galena. of Cretaceous...thin beds todorokite, birnessite, psilomelane, layers. Wet materials of the todorokite nearly non-crystalline...are embedded in chert near the dyke of quartz-porphyry, manganese The thermal and skarns. Massive...Massive ore deposit consisting mainly of todorokite coal-black Permian and blocks. alteration. rocks |  | | Journal (article/letter/editorial) | | 2001; Rubinstein et al., 2004). Several Cu–(Mo) porphyry type deposits are hosted and genetically linked...related to the upper section of the CMC there are Mo-porphyry type deposits (Carpio et al., 2001) and epithermal...jacobsite, manganite, groutite, ramsdellite, todorokite, hausmannite and calcofanite with massive, crustiform...Dos Marías deposit consisting of pyrolusite, todorokite and ramsdellite of hypogene origin (cf. 5.4....(Ethel Group) Santa Cruz 86303 Pyrolusite, Todorokite Ramsdellite 0.403 1.134 32 71 ± 3 86162 |  | | Journal (article/letter/editorial) | | per unit cell]. From Dzhuzumli, Mt. Zirabulaksk region, Bukhara. Named after the alchemist Avieenna (Abu...The correct form has been fairly widely used in Germany (Hintze, Handb. Min., Erg.-Bd., p. 86; H. Strunz...phlogopite deposit of the Medviezhy river, Aldan region, Yakutia. Named from the composition. [M.A. 14-280...Geol. Surv. Bull. no. 1057, p. 1. Synonym of Todorokite (14th List). (Amer. Min., 1960, vol. 45, p. 1175...zeunerite from Biihlskopf, Ellweiler, Birkenfeld, Germany, contain Na, U, and As, and appear to be identical |  | | Report (volume) | | ____________________________ Slate of the York region-____________________________________ Argillaceous...limestone which overlies the "slate of the York region" ____ 3. Very thin bedded argillaceous limestone...granites. Still later, dikes of granite, rhyolite porphyry, and finally, lamprophyre were injected into some...euclase, bertrandite, helvite, phenakite(?), todorokite, and hematite. Beryl occurs sparsely in late...workers believed that the oldest rocks of the York region (slates) are pre-Ordovician in age, and that the |  | | Journal (article/letter/editorial) | | macrocristallines, et de plasmas mangan6sif6res /t todorokite et nsutite. Les plasmas ~ kaolinites sont repr6sent6s...de la todorokite (T). V=vide. Observation au MEB d Remplacement pseudomorphique de la todorokite (T) par...(7 analyses). - Le p l a s m a mangan6sif6re/t todorokite constitue l'essentiel des lits mangan6sif6res...est reconnaissable au sein 131 du plasma /~ todorokite, de m~me que la structure en <...rayons X nous a permis de caract6riser cette todorokite par les raies /t 9,50A, 4,80A, 3,68 A, 2,50 A |  | | Journal (article/letter/editorial) | | gemmy). tavorite, uraninite, zircon. Old Marble quarry, off Needles Hwy.. SW% SE%sec. 33, T.2S.. RSE.;...leucophosphite), tiptopite" (T, microcrystals), todorokite, triphylite, uraninite, vivianite, xanthoxenite...2 I.'11SN.. R.2E.: adit, vertical fractures in porphyry s i l l in Deidwotd Fomiation: gold. sylvanite...with undcrgmund shaft, ore in brecciated trachyte porphyry: gold (tine wires and threads). pyrite. Racru...(large white crystals, some triphane), stewartite. todorokite. topaz (Moore and It0 1979). Edison mine, I mi |  | | Book | | Accumulations in Paleokarst: Deposits of the Postmasburg Region, Griqualand West, Cape Province, South Africa 3...Bishop, Lohatlha, Glosam, and Kapstewel, Postmasburg Region, Griqualand West 3.3.2.3. Processes of the Manganese...Chapter 1 that the mineral of this name occurred in Germany near the settlement Witerbo, Tusconia, as ferrous...the Tertiary Sediments 0/ the Ekaterinoslavskaya Region and the Vicinities o/the Krivoi Rog, published...concretions in the Jurassie sediments ofBavaria, Alpine region and neighboring areas. Later, on the basis of investigations |  | 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) | | 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...rhodonite, cryptmelane–pyrolusite– nsutite–birnessite–todorokite–takanelite Manganese carbonate ore Manganese |  | | Journal (article/letter/editorial) | | However, a few of the deposits as well as the porphyry copper K-silicate assemblages exhibit calculated...area of the sedimentary basin of the 'Green Tuff Region' in Japan. Manganese dioxide and hydroxide minerals...such as pyrolusite, cryptomelane, manganite, and todorokite are the principal constituents of the ores; these...These deposits occur in the Miocene 'Green Tuff Region' in the islands of Japan. Mineralization is variable...Professor Friedrichsen of the University of Tubingen, Germany, both of whom critically read the manuscript and |  | | Journal (article/letter/editorial) | | in the presence of accessory minerals, such as todorokite, manganite, coronadite, cryptomelane and gangue...hollandite [general formula Bax(Mn 4+, Mn 3+)8O16]. Todorokite [(Mg, Ca, Na, K)x(Mn 4+,Mn 3+)6O12·3.5H2O] and...Randall et al., 1998). Pyrolusite, hollandite and todorokite, which are the main Mn minerals in the studied...et al., 1983), promoting the precipitation of todorokite at some of the studied sites. Furthermore, the...the absence of calcite in samples containing todorokite suggests that this mineral may have played a significant |  | | Journal (article/letter/editorial) | | formation of the mineralized Mn deposits at Merehead Quarry, Cranmore, Somerset, England R. TURNER* The Drey...formation of the mineralized Mn deposits at Merehead Quarry which accounts for all the features of the deposit... creating a major disconformity visible in the quarry today. The disconformity represents a gap in stratigraphy...of manganate minerals (such as birnessite and todorokite) from the seawater by the same process that creates...mineralized manganese pods, such as Holwell (Coleman’s) Quarry, and Higher Pitts, which exhibit many of the same |  | | Journal (article/letter/editorial) | | transversal structural unit of the northern Okhotsk region and is regarded as a fragment of two intersecting...sequences (Fig. 1). A subvolcanic body of rhyolite porphyry with large phenocrysts (nevadite) is 2 km2 in...Iskra creeks at 1000–1100 masl. A newly formed todorokite–vernadite–kaolinite assemblage occurs in the...the oreforming process. Late colloform Al-rich todorokite associated with Mn-bearing clinozoisite is characterized...The flakes intergrown with zincite are Fe-rich todorokite and vernadite with admixtures of S, Cl, K, Ca |  | | Report (issue) | | pyrolusite, coronadite, cryptomelane, hollandite, todorokite, amorphous Mn02« Texture/Structure Fine-grained...Weathering Strong development of secondary Mn oxides (todorokite, birnessite, pyrolusite, amorphous MnOo) at the...and/or regional manganese halos Examples Meggen, Germany Magnet Cove, Arkansas Northumberland, Nevada References...deposits in volcanic flows, breccias and tuffs near porphyry system. GENERAL REFERENCE Sillitoe, 1983 GEOLOGICAL...Associated Deposit Types Metal Concentrations Porphyry Cu-Mo Cu, Ag, As, Sb, Zn, Mo DEPOSIT DESCRIPTION |  | | Journal (article/letter/editorial) | | an experimental solution the Ca + Mn 4+ oxides todorokite and takanelite were identified. These oxides...disseminated in low concentrations in granite porphyry. As in other sulfide ore bodies, the recovery...and W503-2-J. respectively. C. Todorokite - (m2+, D. Todorokite - (t.k-~'+, M6, Cs, Ba. K, Ns) 2Mn4;012...sample 503-2-J compared with peaks reported for todorokite ( 1, --) by FRONDEL et al. ( 1960), and (2, ---)...suggest the presence of the Mn plus Ca oxides, todorokite (LAW- 1608 J. D. Hem and C. J. Lind RENCEet |  | Amstutz, G. C., Goresy, A. El, Frenzel, G., Kluth, C., Moh, G., Wauschkuhn, A., Zimmermann, R.A. - Eds. (1982) Ore Genesis. Springer Berlin, Heidelberg. doi:10.1007/978-3-642-68344-2 | Book | | such a creation are (l).the complexity of most porphyry copper intrusions; (2) the fact that, almost always...Rhythmites of the Trzebionka Mine, Upper Silesian-Cracow Region, Poland L. Fontbote and G.C. Amstutz (With 2 Figures)...Subvolcanic Rocks Native Tellurium from Musariu, Brad Region, Metaliferi (Metalici) Mountains, Romania I. Berbeleac.... . .. 308 Laramide Igneous Rocks and Related Porphyry Copper Occurrences of Southwest Romania K.A. Gunnesch...Figures) 418 Uranium Occurrences of Bavaria, Germany (With Emphasis on the Bavarian Pfahl of the Altrandsberg |
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