 | | Journal (article/letter/editorial) | | peak areas on Mdssbauer spectra of mixtures of vivianite and amorphous ferric phosphate vary linearly with...spectra of iron phosphate mixtures and oxidized vivianite is consistent with magnetic susceptibility measurements...of Illinois at Chicago Circle, Chicago, Illinois, USA. Isotope Department. * * * Department of Electronics...pho~.phates precipitated in the laboratory, and vivianite and goethite from natural occurrences . X-ray...Fe3(PO4)*? . 8HeO, pure) showed only the fines of vivianite . Howe~'er, an appreciable admixture of X-ray |  | | Journal (issue) | | Scientific Stindly of tn© Absorption off Evil bv Vivianite Alfredo Petrov alfredo@mindat.org Every mineral...or another probably drooled overa gemmy green vivianite from Morococala. Huanuni. Llallagua or Tomokoni...hesitated to buy it because they had heard that vivianite crystals are unstable and will eventually turn...specimen came from a locality which produces stable vivianite - stable because of some magical ingredient in...them up. Unfortunately, the bad news is that ALL vivianite suffers from the same type of instability; the |  | Liu, Deng, Wang, Hongmei, Dong, Hailiang, Qiu, Xuan, Dong, Xiuzhu, Cravotta, Charles A. (2011) Mineral transformations associated with goethite reduction by Methanosarcina barkeri. Chemical Geology, 288 (1) 53-60 doi:10.1016/j.chemgeo.2011.06.013 | Journal (article/letter/editorial) | | Department of Geology, Miami University, Ohio 45056, USA State Key Laboratory of Microbial Resources, Institute...Pennsylvania Water Science Center, New Cumberland, Pennsylvania 17070, USA b c a r t i c l e i n f o Article...Bioreduction Goethite Methanogen Mineral transformation Vivianite a b s t r a c t To investigate the interaction...minerals including dufrénite and vivianite. Our data implied a dufrénite–vivianite transformation mechanism where...metastable dufrénite transformed to a more stable vivianite over extended time in anaerobic conditions. Methanogenesis |  | Dong, Hailiang, Fredrickson, James K, Kennedy, David W, Zachara, John M, Kukkadapu, Ravi K, Onstott, Tullis C (2000) Mineral transformations associated with the microbial reduction of magnetite. Chemical Geology, 169 (3) 299-318 doi:10.1016/s0009-2541(00)00210-2 | Journal (article/letter/editorial) | | Princeton, NJ 08544, USA b Pacific Northwest National Laboratory, Richland, WA 99352, USA Accepted 2 December...but no secondary mineral phases were observed. Vivianite formed in those solutions containing P and in...opposed to solid state conversion of magnetite to vivianite or siderite. The aqueous medium, pH, strain type...putrefaciens; Reduction; Magnetite; Siderite; Vivianite ) Corresponding author. Tel.: q1-609-258-2597;...siderite was observed. Magnetite, siderite and vivianite are common mineral products observed during FeŽIII |  | | Journal (article/letter/editorial) | | gebunden ist. Nontronite, limonite (with opal) and vivianite are forming at present in the aereated, shallower...hydroxides in the sediment. The formation of vivianite can be explained by a dissolution of Ca-phosphate...silicate facies) and minor amounts of limonite and vivianite. These sediments are either of the " m u d type"...oolites (Fig. 3 A). c) Sediments Enriched in Vivianite (iron phosphate facies). The most unusual occurrence... >80 pellets and mud nontronite limonite, vivianite ? 23 54 15 mud nontronite limonite diatomite |  | | Journal (article/letter/editorial) | | Copyright © 2003 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/03 $30.00 ⫹ .00 Pergamon...outer cellular membrane. In the treatment with HFO, new FeII and FeIII minerals formed during reduction of...(Fe3O4), goethite, green rust, and vivianite [Fe3(PO4)2 · 8H2O]. Vivianite appeared to be the stable end product...Northwest National Laboratory in Richland, Washington, USA. Strain CN32 was isolated from a subsurface core...a shale-sandstone sequence in northwestern New Mexico, USA (Zachara et al., 1998). Cells were maintained |  | | Journal (article/letter/editorial) | | proposed mechanism for the formation of spherical vivianite crystal aggregates in sediments J.L. Z E L I B...spherical vivianite crystal aggregates in sediments. Sediment. Geol., 59: 125-142. Vivianite [Fe3(PO4)2...spherical aggregates of crystals. Crystallization of vivianite in agar gels of various concentrations yield crystal...than when they were on open circuit. In nature, vivianite nodules generally are found in sediments or clays...proposed to explain a possible origin of nodular vivianite. To maintain iron and phosphate concentrations |  | | Journal (issue) | | KRISTALLE Est.1971 Laguna Beach, California, USA • Tel: +1 949 494 5155 • Email: info@kristalle.com...Scientific Consideration of the Absorption of Evil by Vivianite......285 by A. Petrov Collector Profile: Steve...only): $139/one year (Canada) $231/one year, (outside USA other than Canada) $325 for one year Subscription...and optimal size of issues John Rakovan moves to New Mexico Tech Dr. John F. Rakovan, formerly Professor...Ohio, has taken a new position as Mineralogist/Senior Mineral Museum Curator at the New Mexico Bureau of |  | Maciąg, Łukasz, Rydzewska, Urszula, Skowronek, Artur, Salwa, Sylwester (2019) Mineralogy and Geochemistry of Fluvial-Lacustrine Pisolith Micronodules from the Roztoka Odrzańska, Odra River, NW Poland. Geosciences, 10 (1) 3 doi:10.3390/geosciences10010003 | Journal (article/letter/editorial) | | from the nucleus, even to full replacement with new minerals. The outer layer is often characterized...situ situ crystallization crystallization of of new new minerals, minerals, mainly mainly due due to to...H—hematite, L—lepidocrocite, Fh—ferrihydrite, V—vivianite V—vivianite (metavivianite), I—illite, M—montmorillonite...ofmetavivianite metavivianite(Fe (Fe3+ ) and and 2+ 2+ vivianite (Fe ), typical for oxygen-rich environments [55...56] was identified. Additionally, the β-quartz vivianite (Fe ), typical for oxygen-rich environments [55 |  | | Journal (article/letter/editorial) | | the chemical requirements for the formation of vivianite and other iron phocphates in the Great Lakes sediments...phosphate minerals in reducing environments are vivianite, reddingite, and anapaite. The precipitation and...dissolution of these iron phosphates (particularly vivianite and ludlamite, the dominant phases) in the Great...the chemical requirementsin the formation of vivianite and other iron phosphatesin Great Lakes sediments...Approximation of Thermochemical Constants Except for vivianite and strengite,thermochemical data for the basic |  | | Journal (article/letter/editorial) | | Ideally Co3(AsO4)2 ·8H2O: Structural Variations in Vivianite-Group Minerals Sytle M. Antao * ID and Inayat...00 (AsO4 )2 ·8H2 O. Erythrite belongs to the vivianite-type structure that contains M1O2 (H2 O)4 octahedra...is no structural reason why similar V-series vivianite-group minerals do not occur naturally or cannot...cannot be synthesized. Keywords: erythrite; vivianite-group minerals; structure; chemistry; oscillatory zones;...ideally Co3 (AsO4 )2 ·8H2 O, is a member of the vivianite-group minerals with general formula M3 (TO4 )2 |  | | Journal (article/letter/editorial) | | arsenate, solid solution, Raman spectroscopy, vivianite-group minerals, infrared spectroscopy. SOMMAIRE...spectroscopie de Raman, minéraux du groupe de la vivianite, spectroscopie infrarouge. § E-mail address:...ca na dia n miner a l ogist INTRODUCTION The vivianite-group minerals have a general formula M 2+3(XO4)2•8H2O...been used to determine the crystal structure of vivianite-type minerals. Wildner et al. (1996) established...interconnected only by hydrogen bonds. Many studies of the vivianite group of minerals have shown that complex solid-solutions |  | | Journal (article/letter/editorial) | | Argonne National Laboratory, Lemont, IL 60439-4843, USA; mboyanov@anl.gov (M.I.B.); kemner@anl.gov (K.M.K...containing 50 mM Fe(II) as magnetite, siderite, vivianite, green rust, or mackinawite, using X-ray absorption...concentrations decreased to <20 µM in all but the vivianite and the biogenic BiSMM systems; however, >99.5%...V was removed from solution in the BioSMM and vivianite systems within 7 and 20 months, respectively....was only partially reduced in the magnetite, vivianite, and BioSMM systems, where within 7 months the |  | | Journal (article/letter/editorial) | | The Netherlands 225 FORMATION OF SIDERITE AND VIVIANITE AND THE PORE-WATER COMPOSITION OF A RECENT BOG...ABSTRACT Postma, D., 1981. Formation of siderite and vivianite and the pore-water composition of a Recent bog...225--244. In a bog deposit containing siderite and vivianite, both minerals consist of a solid solution with...strong supersaturation is found with respect to vivianite while with Mn 3 (PO 4)2 strong subsaturation prevails...prevails. Supersaturation with both siderite and vivianite cannot be explained by solid solution alone, and |  | Peretyazhko, T.S., Zachara, J.M., Kennedy, D.W., Fredrickson, J.K., Arey, B.W., McKinley, J.P., Wang, C.M., Dohnalkova, A.C., Xia, Y. (2010) Ferrous phosphate surface precipitates resulting from the reduction of intragrain 6-line ferrihydrite by Shewanella oneidensis MR-1. Geochimica et Cosmochimica Acta, 74 (13) 3751-3767 doi:10.1016/j.gca.2010.04.008 | Journal (article/letter/editorial) | | ferrihydrite and lepidocrocite, with siderite (FeCO3), vivianite [Fe3(PO4)28H2O], magnetite (Fe3O4), green rust...camera and processed using Digital Micrograph (Gatan, USA). Lattice dimensions were measured using selected...(Fig. EA-4) revealed that the precipitate was vivianite (Fig. 7a). However, diffraction analysis of the...Ta- ble EA-1]. The maximum intensity line of vivianite at 6.71 Å was not found in the SAED pattern (Table...finding of graftonite was unexpected because only vivianite has been reported as a phosphate biomineralization |  | | Journal (article/letter/editorial) | | degradation of carbon tetrachloride by biogenic vivianite and Fe(II) Sungjun Bae, Woojin Lee ⇑ Department...CN32 (CN32) due to the formation of biogenic vivianite and Fe(II). The bioreduction efficiency of magnetite...microscope analyses revealed that the biogenic vivianite can form during the CT degradation in magnetite...The dechlorination kinetics of CT by chemogenic vivianite was much faster than that by magnetite and lepidocrocite...by the chemogenic vivianite. The experimental results showed that biogenic vivianite and sorbed Fe(II) |  | | Journal (article/letter/editorial) | | SEPTEMBER_OCTOBER, 1969 THERMAL AND X-RAY STUDIES ON EARTHY VIVIANITE IN GRANEROS SHALE (UPPER CRETACEOUS).KANSAS 'InuueN...Lawrence,Kansas,66014. Assrnlcr Samples of earthy vivianite were treated thermally at difierent temperatures...decreaseswith increasing temperature up to 300oC. Vivianite becomes amorphous after heating to 300oC. A poorly...675oC and 750oC. Infrared studies indicate that vivianite may contain hydroxyl ions, and favor to the structural...of Fes-.2+ Fe'3+ (POr)r [(8-*) HzO' r(OH)] for vivianite rather than the conventional formula of Fe:(POa)z |  | | Journal (issue) | | .293 by P. Bariand and J. F. Poullen Nealite, a new mineral from Laurion, Greece ...................... Y. Vuorelainen and Th. G. Sahama Mullica Hill, New Jersey ............................................Switzerland photomicrography Julius Weber Mamaroneck, New York circulation manager Mary Lynn White designed........................................ 319 Whafs new in minerals? by W. E. Wilson and J. S. White . ....for it when it’s ready. NEW MAGAZINE OUT It’s always a pleasure to see a new mineral magazine emerge |  | O’Loughlin, Edward J., Boyanov, Maxim I., Gorski, Christopher A., Scherer, Michelle M., Kemner, Kenneth M. (2021) Effects of Fe(III) Oxide Mineralogy and Phosphate on Fe(II) Secondary Mineral Formation during Microbial Iron Reduction. Minerals, 11 (2) 149 doi:10.3390/min11020149 | Journal (article/letter/editorial) | | Argonne National Laboratory, Lemont, IL 60439-4843, USA; mboyanov@anl.gov (M.I.B.); kemner@anl.gov (K.M.K...Engineering, University of Iowa, Iowa City, IA 52242-1527, USA; gorski@psu.edu (C.A.G.); michelle-scherer@uiowa... University Park, State College, PA 16802-7304, USA. Abstract: The bioreduction of Fe(III) oxides by...Fe(II)/Fe(III) oxide), siderite (Fe(II) carbonate), vivianite (Fe(II) phosphate), chukanovite (ferrous hydroxy...green rust), while green rust, or green rust and vivianite, formed at phosphate concentrations of 10 mM (ferrihydrite) |  | | Journal (issue) | | mineralogists and collectors alike. To date, a total of ten new mineral species have been described from the area...number will continue to grow. In addition to the new species found, specimens of arrojadite, augelite...abrupt change in the winds can quickly advance a new airmass, bringing rain or snow squalls in a matter...that this mineral was not lazulite, but an entirely new species, which was named kulanite, in honor of A1...pale blue “vivianite” collected at the same time resulted in the description of a second new species, baricite |  | Zhao, Linduo, Dong, Hailiang, Kukkadapu, Ravi, Agrawal, Abinash, Liu, Deng, Zhang, Jing, Edelmann, Richard E. (2013) Biological oxidation of Fe(II) in reduced nontronite coupled with nitrate reduction by Pseudogulbenkiania sp. Strain 2002. Geochimica et Cosmochimica Acta, 119. 231-247 doi:10.1016/j.gca.2013.05.033 | Journal (article/letter/editorial) | | Environmental Earth Science, Miami University, OH 45056, USA Geomicrobiology Laboratory, State Key Laboratory...Northwest National Laboratory, Richland, WA 99352, USA d Department of Earth & Environmental Sciences, Wright...Wright State University, Dayton, OH 45435, USA e State Key Laboratory of Geobiology and Environmental...Microscopy & Imaging, Miami University, Oxford, OH 45056, USA Received 17 November 2012; accepted in revised form...nontronite structure, but secondary minerals such as vivianite, ferrihydrite, and magnetite formed depending |  | | Journal (article/letter/editorial) | | However, the presence of the iron-phosphate vivianite was reported as leaves’ replacements in several...Fe/Ca phosphates of 2+ such occurrences are: vivianite Fe2+ (PO4)2 4H2O 3 (PO4)2 8H2O, anapaite Ca2Fe...constituents have been replaced by the Fe-phosphate vivianite (Stamatakis and Koukouzas, 2001). In the lacustrine...been derived by the reduction of primary Fe3+. Vivianite is a primary mineral precipitated from the pore...1974). Thermodynamic calculations indicate that vivianite precipitation is favourable in deeper anoxic sediment |  | | Journal (article/letter/editorial) | | California 91125, USA Abstract. The valence and distribution of iron in vivianite, lazulite, babingtonite...clusters of two, three, or four polyhedra (e.g., in vivianite, lazulite, and babingtonite, respectively) no...Mineral ber Locality and description vivianite Mullica Hill, New Jersey CIT 9979 polycrystalline cast...i m p u r t i e s in a h o s t structure. I n vivianite, isolated pairs o f F e 2 + and F e 3 + o c c...WAVENUMBER (cm -1 ) 30000 2,0000 3.0(~) IVCT 10000 Vivianite I I1\ A ojtO B C 5000 E/Ib_ '{::~Fe3 v/ |  | | Journal (article/letter/editorial) | | 00:10 29 March 2016 9654 Highway 37 Ogdensburg, New York 13669 pebble.art@outlook.com Photos by Jeffrey...sources: the minerals azurite, lazurite, and vivianite. This article focuses on those three minerals...weathered or if deep blue crystals Figure 1. Vivianite, 2.6 cm high, from the Huanuni mine, Potosi, Bolivia...out of pious reverence” (Wehlte 1975, p. 139). Vivianite, a hydrated phosphate of iron, provided the wonderful...in order to obtain the blue color, since pure vivianite is essentially colorless (www.mindat.org/article |  | | Journal (article/letter/editorial) | | (ECP-effect) are studied in single crystals of vivianite, phlogopite, biotite, elbaite and sch6rl under...second type is so far observed only in spectra of vivianite, biotite and tourmaline (Smith 1978a, b; Amthauer...unpolarized light. Polarized absorption spectra of vivianite at temperatures from 20 K to 297 K have been already...ferrous iron followed by further destroying of vivianite structure, the optical spectra of this mineral...Because of that, pressure dependent spectra of vivianite were obtained here only. A slightly oxidized dark-blue |
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