 | | Report (volume) | | ............................................ Todorokite and chalcophanite .............................Pace-and-compass map of the Racine Boy and Silver Cliff quarry area showing sample localities Map showing sample... barite, and minor amounts of chalcophanite, todorokite, and birnessite. Although the study was directed...the Silver Cliff-Rosita mining district, Custer County, Colo. (fig. 1), on the east side of the Wet Mountain...Canon City o pueblo Study area (fig. 2)' XUSTER COUNTY . Walsenburg tAlamosa 37' FIGURE 1. Location |  | | Journal (article/letter/editorial) | | prototesandore deposits, is basedonlyon metamor- and Conklin(1963) and Hewett (1964) havegiven phosedequivalents...Hewett and Fleischer,1960; Larson, Fleischer and Conklin(1963) andHewett (1964), 1964; Prinz, 1967). At...Co)M•7014.2.8 #2ø (JONESANDMILNE,1956) (8 -MnO• ) TODOROKITE (Mn,Ce) Mn$07.2H20(LARSON, 1962) •e. MnOOH ...sulfidesin hypogeneveins formed from County,Arizona, Imperial County, California,Eu- hydrothermal solutions(Hariya...Dona Ana County,Black Diadepositsdiscussed above, rhodochrosite, generally mond mine, Grand County, Hidalgo |  | | Journal (issue) | | specimen from the Spanish Dry Diggings, Eldorado County, California, and a little of its history ........................................ 325 by L. H. Conklin T1 mM!NERA!. =!CAL RECORD The Newmont Azurite:................................... 333 by L. H. Conklin Postscript: Hessonite with apatite, Mount Avie..................... 248 Obituary: Lawrence H. Conklin (by W E. Wilson) What's New in Minerals Tucson...the Editors Died, Lawrence H. Conklin, 82 Lawrence Henry "Larry" Conklin, Jr., well-known New York mineral |  | | Journal (issue) | | calcium silicate, one of the rarer zeolites • Grant County, Oregon • tiny crystals with a striking pearly...offering something for virtually every element of the “rock hobby.” John S. White, Jr. mineralogical record...matrix. 3 x 1.5 in. $65.00. NEPTUNITE. San Benito County, California. A fine m atrix specim en with six...Very attractive. $10.00 each. ARTINITE. San Benito County, Cali fornia. A selection of twelve specimens...learned that Cahn first sold minerals at Staten Island, N.Y., in New Y ork City at two establishments |  | | Journal (issue) | | mineral from the Clear Creek claim, San Benito County, California ............269 by A. C. Roberts, M...howieite, and zussmanite at the Laytonville quarry in Mendocino County, California. He brought the minerals...area to be responsible for (as, for example, a county or state museum), but there would be no particular...chief chef for a hospital (I believe in Sonoma County), was an expert on rare conifers of the California...under datolite in the hydrothermally altered wall rock of the open cavity in the upper part of the Main |  | Tebo, Bradley M., Bargar, John R., Clement, Brian G., Dick, Gregory J., Murray, Karen J., Parker, Dorothy, Verity, Rebecca, Webb, Samuel M. (2004) BIOGENIC MANGANESE OXIDES: Properties and Mechanisms of Formation. Annual Review of Earth and Planetary Sciences, 32. 287-328 doi:10.1146/annurev.earth.32.101802.120213 | Journal (article/letter/editorial) | | through the weathering of igneous and metamorphic rock and is oxidized, forming more than 30 known Mn(III)...differs from the double or triple chains (e.g., todorokite or hollandite) in tunnel diameter and thus surface...into Figure 2 Examples of the chain/tunnel (todorokite, hollandite, and ramsdellite) and layer (birnessite)...charge-balancing cations (Ca, Na, and K) are not shown for todorokite. 7 Apr 2004 21:4 AR AR211-EA32-11.tex AR211-EA32-11...(i.e., buserite) from tunnel manganates (i.e., todorokite), which are neither collapsible nor expandable |  | Carlos, Barbara A., Chipera, Steve J., Bish, David L., Craven, Sandra J. (1993) Fracture-lining manganese oxide minerals in silicic tuff, Yucca Mountain, Nevada, U.S.A. Chemical Geology, 107 (1) 47-69 doi:10.1016/0009-2541(93)90101-n | Journal (article/letter/editorial) | | Alamos, NM 87545, USA bDepartment of Geology, Smith College, Northampton, MA 01063, USA (Received June 20...te, lithiophorite, pyrolusite, rancieite and todorokite. Mn-oxide mineralogy appears to be controlled...above and below the SWL. Aurorite, pyrolusite, todorokite and the cryptomelane group minerals, although...proposed a family name of hollandite-romanechite. Todorokite ( (Na,Ca, K,Ba, Sr ) 0.3-0.7 ( Mn,Mg,A1 ) 60~2"... 1988), though, like hollandite-romanechite, todorokite has inter- 50 growths of larger 3 × n (3 × |  | | Report (chapter) | | encrusting vugs, and replacing pyrolusite and todorokite in massive deposits of the Falakron marbles....1986; Nevada USA, Carlos et al. 1993) and travertines, limestones or marbles (North Dakota USA, Hewett &...Relict fibrous aggregates (up to 15 #m across) of todorokite mixed with fine-grained ?pyrolusite also occur...fibrous todorokite (optical and X R D evidence) in the same part of the ore. This todorokite has been...Janggun mine, Korea (Kim 1991); 5, Anson Betts, Ma, USA (Frondel et al. 1960). * s, strong; m, medium; w |  | | Journal (article/letter/editorial) | | manganite) and Mn(III/IV) (e.g., birnessite, todorokite) to Mn(IV) (e.g., asbolane). Whole-precipitate...minerals with a MnOx -like formula, birnessite and todorokite are the most profusely studied by their high...birnessite (both hexagonal and triclinic) and todorokite. Trace element portioning in these mine waters...2 mg/L Mn (e.g., Shade Mining site in Somerset County [25]). In a review of passive systems for manganese...of manganese in coal mine drainage in the Durham County (UK), where Mn(II) was present at low concentrations |  | | Book (volume) | | A Location Guide for Rock Hounds in the United States NEBRASKA This rectangular Great Plains state rises...overlooks both Colorado and Wyoming. The subsurface rock strata of the entire state are all undisturbed sedimentaries:...borderland from Sheridan Co. to the Wyoming line is good rock hunting country, especially along the southern slopes...of Crawford in Dawes Co. and the rather extensive rock beds east of the Orella railroad sta. ranks among... The Sandhills Museum in town is well worth the rock hunter’s visit. Draws, cuts and breaks in the hills |  | | Journal (article/letter/editorial) | | cryptomelane, and soft nodular ore consisting of todorokite with minor amounts of psilomelane (or cryptomelane)...The pitted, badly polished outer layer is of todorokite. Notice the fine cracks perpendicular to the...psilomelane or wad. An outer badly polished crust of todorokite is sometimes present, and a few concentric bands...pyrolusite also occur. The identity of psilomelane and todorokite was established by X-ray examination and chemical...the layers, and may enclose small patches of todorokite. The fine-grained layers are narrower, better |  | | Book | | ADULARIA Adu Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN...Iron-manganese phosphates of the Williams pegmatites, Coosa County, Alabama (by P. B. Leavens & T. A. Simpson) 6:66-73...ALASKA Famous mineral localities: Prince of Wales Island, Alaska (by P. B. Leavens & R. W. Thomssen) 8:4-12...ALICE GLORY HOLE The Alice glory hole, Clear Creek County, Colorado (by T. A. Hanson & W. B. Craft) 18:185187...--and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE MYERS --and |  | | Journal (article/letter/editorial) | | (1925) (with W. T. Schaller) Hisingerite from Blaine County, ldaho. Amer..I. ,Sci.5th ser. 10, 29-38. (1928)...Shannon) Zeolites from Ritter Hot Spring, Grant County, Oregon. U. S. Nat. Museum Proc. 73, 18. (1930)...(1937) (with W. T. Schaller) Braunite from Mason County, Texas.Amer. Mineral. 22,785-789. (1947) The story...uranium-bearing pegmatite bodies in San Bernardino County, California. Amer. Mineral. 38, 1040-1050. (1954)...Stone) Uranothorite near Forest Home, San Bernardino County, California. Amer. Min' eral. 42, 104-107. (1960) |  | | Journal (article/letter/editorial) | | typelocalityin Japan (Yoshimura,1934).Subsequently, todorokite,oneof a scoreor more of manganese (IV) oxide...within the area 82',7 828 BURNSAND BURNS: TODOROKITE AND PHILLIPSITE The XRD powder (K,Na,Ca)r(Si...calcareoustests, becausethe seafloor cryptomelane productof todorokite. betweenthe Clarion and ClippertonFractureZones...Mn-filteredFeKa radiation. analysis, BURNS AND BURNS: TODOROKITE AND PHILLIPSITE 829 and 2). The crystalsare...identifying the mineralas todorokite.The meshworkof todorokite crystalsalsofills fissures (Figs.3a and 3b), |  | | Journal (article/letter/editorial) | | Cambridge, MA, USA b Stanford Synchrotron Radiation Lightsource, Menlo Park, CA, USA c Environmental...Pacific Northwest National Laboratory, Richland, WA, USA Received 14 September 2010; accepted in revised form...phyllomanganate to more ordered phases, such as todorokite (A. strictum strain DS1bioAY4a) and triclinic...Applied Sciences, 29 Oxford St., Cambridge, MA 02138, USA. Fax: +1 617 496 1471. E-mail address: hansel@seas...10th and Constitution Ave., Washington, DC 20560, USA. 0016-7037/$ - see front matter Ó 2011 Elsevier |  | | Journal (article/letter/editorial) | | Copyright © 2003 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/03 $30.00 ⫹ .00 Pergamon...94720-3110, USA Stanford Synchrotron Radiation Laboratory, SLAC, P.O Box 4349, Stanford, CA 94309, USA (Received...hyporheic zone connecting Pinal Creek (Arizona, USA) to a shallow groundwater plume. The Mn oxides, accumulated...characterization studies of natural biogenic Mn oxides: todorokite, birnessite group minerals, and “buserite” [an...birnessite (Potter and Rossman, 1979; Post, 1999)]. Todorokite, a Mn(III, IV) oxide with a tunnel structure |  | | Journal (article/letter/editorial) | | of hydrous calcium-manganeseoxides (rancieite, todorokite, and birnessite). Nsutite is the only manganesedioxide...and hydroxides: Nsutite (1.64) Nsutite (1.67) Todorokite Birnessite Rancieite approx.MnO2 (Zwickeret...Rhodonite Tephroite Secondary minerals Rancieite Todorokite Birnessite Nsutite Neotocite a Locality Littleton...Tephroite Secondary minerals Rancieite a? Todorokite Birnessite Nsutite Neotocite a • Mineralsidentifiedduringthe...intimatelyintergrownwith the silicatesmakingup the bulk of the rock or whichare in masses cut by veinletsof the gangueminerals |  | | Journal (issue) | | —from a quarry near Eldorado, in the Uwharrie Wildlife M anagem ent A rea, M ontgom ery County, North...at the Burlington mine near Jamestown, Boulder County, Colorado. We found perhaps a dozen good specimens... MINERAL SPECIES: Country: State or Province: County: N earest Town: M ine Name: O ther Inform ation:...friends with the superintendent of every trap rock quarry in New Jersey, and our Saturday morning trips...generous in returning the favors accorded him by the quarry operators and his distinctive pieces were looked |  | | Report (chapter) | | Abstract: EPMA and SEM studies of tunnel-structured todorokite and nsutite and layer- structured chalcophanite...Mnmineralization were performed. The chemistry of todorokite, formed at hypogene and supergene environments...early supergene Mna+-oxide paragenesis on the host rock and protore composition and the mobilities of base...weathering of vein mineralization of rhodochrosite and todorokite with minor base metal sulphides. The Mn-oxides...natural analogues. Nsutite and its analogues (e.g. todorokite and birnessite) constitute a good battery material |  | | Journal (article/letter/editorial) | | the buserite phase claim it to be the parent of todorokite which is consideredto be a mixture of buseriteand...experimental evidencedemonstratingthe integrity of todorokite (a tekto-manganate with multidimensionaltunnels...constitutenaturaltodorokites.The crystal chemistry of todorokite structure'types is discussed.We suggestthat three...could be accommodated.We recommend that the name todorokite be universally adopted for the predominant manganeseoxide...phaseoccurring in manganesenoduleswas identified as either todorokite (Straczek et al., 19ffi; Hewitt et al., 1963) |  | | Journal (article/letter/editorial) | | (1925) (with W. T. Schaller) Hisingerite from Blaine County, ldaho. Amer..I. ,Sci.5th ser. 10, 29-38. (1928)...Shannon) Zeolites from Ritter Hot Spring, Grant County, Oregon. U. S. Nat. Museum Proc. 73, 18. (1930)...(1937) (with W. T. Schaller) Braunite from Mason County, Texas.Amer. Mineral. 22,785-789. (1947) The story...uranium-bearing pegmatite bodies in San Bernardino County, California. Amer. Mineral. 38, 1040-1050. (1954)...Stone) Uranothorite near Forest Home, San Bernardino County, California. Amer. Min' eral. 42, 104-107. (1960) |  | Wu, Zhongkuan, Lanson, Bruno, Feng, Xionghan, Yin, Hui, Qin, Zhangjie, Wang, Xiaoming, Tan, Wenfeng, Chen, Zhongjun, Wen, Wen, Liu, Fan (2020) Transformation of Ni-containing birnessite to tectomanganate: Influence and fate of weakly bound Ni(II) species. Geochimica et Cosmochimica Acta, 271. 96-115 doi:10.1016/j.gca.2019.12.023 | Journal (article/letter/editorial) | | tectomanganates, Ni-free samples fully convert to todorokite, a common tectomanganate with a uniform 3×3 tunnel...incomplete – island-like – octahedral layer of metal (hydr)oxides, is thus formed rather than todorokite. A nitric...acid treatment, aiming at the dissolution of the island-like interlayer Ni(OH)2 layer, allows an easy and...unambiguous differentiation between asbolane and todorokite, the latter being unaffected by the treatment...polymerization rate determines the formation of todorokite or asbolane. Here, Ni(OH)2 polymerization hampers |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Miguel Calvo Zaragoza, Spain Joe Polityka Staten Island, NY Jeffrey A. Scovil Phoenix, AZ Pierre-Nicolas...Garvin & G. Tribbey The minerals of the Hunting Hill quarry, Rockville, Maryland . . . . . . . . . . . . ....Sporadically, lomonosovite, manaksite and natrolite become rock-forming Some Petrological Terms (from JACKSON,...this condition. Alkaline rock: As defined by Shand in 1922, any igneous rock in which the molecular ratio |  | Bargar, John R., Fuller, Christopher C., Marcus, Matthew A., Brearley, Adrian J., Perez De la Rosa, M., Webb, Samuel M., Caldwell, Wendel A. (2009) Structural characterization of terrestrial microbial Mn oxides from Pinal Creek, AZ. Geochimica et Cosmochimica Acta, 73 (4) 889-910 doi:10.1016/j.gca.2008.10.036 | Journal (article/letter/editorial) | | Road, Building 137, MS 69, Menlo Park, CA 94025, USA b US Geological Survey, Water Resources Division...345 Middlefield Road, MS 465, Menlo Park, CA 94025, USA c Advanced Light Source, Lawrence Berkeley National...Laboratory, One Cyclotron Road, Berkeley, CA 94720, USA d Department of Earth and Planetary Sciences, MSC03-2040...University of New Mexico, Albuquerque, NM 87131, USA Received 19 March 2008; accepted in revised form...impermeable barrier with extraction wells, and a lime treatment plant upgradient of the perennial stream |  | | Journal (article/letter/editorial) | | By far, the most abundantmineral in the bed is todorokite,but thin beds of manganiteare recorded. At the...some limestone. The most abundant mineral is todorokite,but a little manganiteand pyrolusitehavebeennoted...locally much thicker. The most abundant oxideis todorokite, butcryptomelane is present. The bedof manganese...Oxides, carbonate Nan•yshlak MevCaledonia Vate Island tuEE, glauconite Sandstone,clay, marl, Oxides...'The most widespreadmineral is pyrolusite,but todorokite,psilomelane,cryptomelane,hausmannite, and manganiteare |
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