• Schwertmannite - Wikipedia

    en.wikipedia.org/wiki/Schwertmannite Schwertmannite is an iron-oxyhydroxysulfate mineral with an ideal chemical formula of Fe 8 O 8 6 (SO 4)·nH 2 O or Fe 3+ 16 O 16 (OH,SO 4) 12-13 ·10-12H 2 O. It is an opaque tetragonal mineral typically occurring as brownish yellow encrustations. It has a Mohs hardness of 2.5 - 3.5 and a specific gravity of 3.77 - 3.99.
  • Schwertmannite: Mineral information, data and localities.

    www.mindat.org/min-7281.html Schwertmannite mineral data, information about Schwertmannite, its properties and worldwide locations.
  • Schwertmannite Mineral Data

    webmineral.com/data/Schwertmannite.shtml Visit our Advertisers for Schwertmannite : Dakota Matrix Minerals Google Search for Schwertmannite John Betts Fine Minerals Search for Schwertmannite McDougall Minerals Google Search for Schwertmannite Rock and Mineral Shows Google Search for Schwertmannite Weinrich Minerals, Inc. Google Search for Schwertmannite. Ask about Schwertmannite here :
  • Schwertmannite - an overview | ScienceDirect Topics

    www.sciencedirect.com/topics/earth-and-planetary-sciences/schwertmannite Schwertmannite, Fe 8 O 8 (OH) 6 SO 4, is isostructural with akaganeite, but SO 4 2 − occupies the tunnels (Figure 2f). Schwertmannite has been found in strongly acid sulfate waters associated with mining activities (acid mine drainage) or pyritic rock outcrops.
  • Phosphate-Imposed Constraints on Schwertmannite Stability ...

    pubs.acs.org/doi/10.1021/acs.est.7b02103 Schwertmannite is a ferric oxyhydroxysulfate mineral, which is common in acid sulfate systems. Such systems contain varying concentrations of phosphate (PO43–)—an essential nutrient whose availability may be coupled to schwertmannite formation and fate. This study examines the effect of phosphate on schwertmannite stability under reducing conditions.
  • Cu(II) incorporation to schwertmannite: Effect on ...

    www.sciencedirect.com/science/article/pii/S0016703713003165 The composition and chemical formula of the three schwertmannite samples prepared in the presence of Cu(II) are shown in Table 1.The concentrations of sulphate measured after complete digestion of the SchCu1, SchCu5 and SchCu10 samples were 1.16, 1.23 and 1.19 mmol g −1, respectively.The sulphate content of all three samples is within the range found for schwertmannite.
  • Effect of Solution Chemistry on Schwertmannite Formation ...

    vtechworks.lib.vt.edu/bitstream/handle/10919/54028/King_HE_T_2015.pdf Effect of Solution Chemistry on Schwertmannite Formation Hannah Elizabeth King Thesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Master of Science In Geosciences Frederick M. Michel, Chair Michael F. Hochella J. Donald Rimstidt June 30, 2015
  • FTIR Spectral Components of Schwertmannite | Environmental ...

    pubs.acs.org/doi/abs/10.1021/es902803u Fourier transform infrared (FTIR) spectral components of three dominant groups of sulfate species in synthetic schwertmannite (Fe8O8(OH)6−x(SO4)x·nH2O) are presented. These components were extracted by multivariate curve resolution analysis of spectra obtained from N2(g)-dry samples initially reacted in aqueous solutions (pH 3−9) at room temperature.
  • Schwertmannite: occurrence, properties, synthesis and ...

    pubs.rsc.org/en/content/articlepdf/2018/ra/c8ra06025h Schwertmannite is a novel mineral and possesses a 3D structure with ordered channels. Fukushi et al.27 studied previous reports and gave a comprehensive description of possible coordination modes, which involved a bidentate bridge of SO 4 2 within an akagan´eite-like structure. Sch has dominant crystal planes at {100},9 which feature double
  • What does schwertmannite mean? - definitions

    www.definitions.net/definition/schwertmannite Definition of schwertmannite in the Definitions.net dictionary. Meaning of schwertmannite. What does schwertmannite mean? Information and translations of schwertmannite in the most comprehensive dictionary definitions resource on the web.