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Crystal structure of Na3Fe(SO4)3: A high-temperature product (∼400 °C) of sideronatrite [Na2Fe(SO4)2OH⋅3H2O]

  • Fernando Scordari EMAIL logo , Gennaro Ventruti , Alessandro F. Gualtieri and Andrea Lausi
Published/Copyright: April 2, 2015
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American Mineralogist
From the journal American Mineralogist Volume 96 Issue 7

Abstract

The iron sulfate Na3Fe(SO4)3 studied here has been obtained as a high-temperature (HT) product (-400 °C) from the thermal decomposition of sideronatrite from Sierra Gorda (Chile) having composition Na2Fe(SO4)2(OH)⋅3H2O. The structure determination was carried out using synchrotron X‑ray powder diffraction. Structural data refined by the Rietveld method, up to Rp = 11.95%, are: space group R3̅, lattice parameters a = b = 13.6231(1) Å and c = 9.0698(1) Å, V = 1457.76(2) Å3, and Z = 6. The structure of Na3Fe(SO4)3 can be described in terms of FeO6 octahedra connected to sulfate tetrahedra by corner-sharing to form infinite chains [Fe(SO4)3]∞, running along c. These chains are joined together by Na atoms to build up a three-dimensional network of strong (Fe-O-S) and weak (Na-O) bonds. The topological relationships of Na3Fe(SO4)3 to the structure of some analog minerals are also discussed.

Keywords: Iron sulfate; synchrotron; structure solution; Rietveld refinement
Received: 2011-1-10
Accepted: 2011-3-10
Published Online: 2015-4-2
Published in Print: 2011-7-1

© 2015 by Walter de Gruyter Berlin/Boston

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  16. Crystal structure of Na3Fe(SO4)3: A high-temperature product (∼400 °C) of sideronatrite [Na2Fe(SO4)2OH⋅3H2O]
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  22. Yttriaite-(Y): The natural occurrence of Y2O3 from the Bol’shaya Pol’ya River, Subpolar Urals, Russia
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https://doi.org/10.2138/am.2011.3783
Keywords for this article
Iron sulfate; synchrotron; structure solution; Rietveld refinement

Articles in the same Issue

  1. Needs and opportunities in mineral evolution research
  2. Rutile inclusions in quartz crystals record decreasing temperature and pressure during the exhumation of the Su-Lu UHP metamorphic belt in Donghai, East China
  3. A first-principles study of the phase transition from Holl-I to Holl-II in the composition KAlSi3O8
  4. Sejkoraite-(Y), a new member of the zippeite group containing trivalent cations from Jáchymov (St. Joachimsthal), Czech Republic: Description and crystal structure refinement
  5. Thermoelastic and thermodynamic properties of plagioclase feldspars from thermal expansion measurements
  6. Quantitative determination of chrysotile in massive serpentinites using DTA: Implications for asbestos determinations
  7. In situ observation of the crystallization pressure induced by halite crystal growth in a microfluidic channel
  8. Microstructures of the larval shell of a pearl oyster, Pinctada fucata, investigated by FIB-TEM technique
  9. Magnesium quantification in calcites [(Ca,Mg)CO3] by Rietveld-based XRD analysis: Revisiting a well-established method
  10. The effect of Fe on olivine H2O storage capacity: Consequences for H2O in the martian mantle
  11. Kinetics of thermal transformation of partially dehydroxylated pyrophyllite
  12. Dehydration of the natural zeolite goosecreekite CaAl2Si6O16·5H2O upon stepwise heating: A single-crystal and powder X-ray study
  13. Incorporation mechanisms of Ta and Nb in zircon and implications for pegmatitic systems
  14. Variable-temperature 27Al and 29Si NMR studies of synthetic forsterite and Fe-bearing Dora Maira pyrope garnet: Temperature dependence and mechanisms of paramagnetically shifted peaks
  15. Calibrating Ti concentrations in quartz for SIMS determinations using NIST silicate glasses and application to the TitaniQ geothermobarometer
  16. Crystal structure of Na3Fe(SO4)3: A high-temperature product (∼400 °C) of sideronatrite [Na2Fe(SO4)2OH⋅3H2O]
  17. Evidence for boron incorporation into the serpentine crystal structure
  18. Structure refinement of Ag-free heyrovskýite from Vulcano (Aeolian Islands, Italy)
  19. Microtextures, microchemistry, and mineralogy of basaltic glass alteration, Jeju Island, Korea, with implications for elemental behavior
  20. Orientation of channel carbonate ions in apatite: Effect of pressure and composition
  21. Thermoelastic property and high-pressure stability of Fe7C3: Implication for iron-carbide in the Earth’s core
  22. Yttriaite-(Y): The natural occurrence of Y2O3 from the Bol’shaya Pol’ya River, Subpolar Urals, Russia
  23. Identification and characterization of nanosized tripuhyite in soil near Sb mine tailings
  24. Letter. High-pressure I2/c-P21/c phase transformation in SrAl2Si2O8 feldspar
  25. Letter. Crystal structure of uchucchacuaite, AgMnPb3Sb5S12, and its relationship with ramdohrite and fizélyite
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