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fibroferrite

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Journal Article
Published: 01 March 2018
European Journal of Mineralogy (2018) 30 (2): 259–275.
... −1758.6 ± 1.7 214.0 ± 1.4 −1493.3 ± 1.8 −3.799 Amarantite 3 −2056.5 ± 1.8 243.8 ± 1.9 −1730.5 ± 1.9 −3.801 Hohmannite 3.5 −2197.8 ± 1.8 (271.4) −1845.3 ± 1.9 −3.138 Fibroferrite 5 −2641.5 ± 1.8 332.2 ± 2.7 −2202.8 ± 2.0 −3.456 Using these data, phase diagrams for low-temperature (25 °C) systems in contact...
FIGURES | View All (9)
Journal Article
Published: 01 December 2016
European Journal of Mineralogy (2016) 28 (5): 943–952.
...Gennaro Ventruti; Giancarlo Della Ventura; Fabio Bellatreccia; Maria Lacalamita; Emanuela Schingaro Abstract The crystal structure of fibroferrite, Fe(OH)SO 4 ·5H 2 O, was studied by means of single-crystal X-ray diffraction and vibrational (FTIR and Raman) spectroscopies. The new diffraction data...
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Journal Article
Published: 01 April 2011
The Canadian Mineralogist (2011) 49 (2): 605–614.
... occurrence, other iron sulfates were identified, including alum-(K), “copiapite”, fibroferrite, halotrichite, melanterite, römerite, and voltaite. Volaschioite occurs as radial aggregates of bladed crystals, up to 100 μm in length and less than 5 μm across. The color is yellowish orange with an orange...
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Journal Article
Published: 01 November 2003
American Mineralogist (2003) 88 (11-12): 1919–1932.
..., copiapite, and fibroferrite form. In Area II, FeSO 4 solutions produced by pyrrhotite oxidation migrate to the exposed pit face, where they evaporate to form melanterite. The melanterite rapidly dehydrates to form rozenite, which falls into a pile at the base of the wall, where melanterite, copiapite...
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Series: GSA Memoirs
Published: 01 January 1992
DOI: 10.1130/MEM170-p433
..., and malachite-paratacamite mixtures. Yellow and orange salts include alunogen, fibroferrite, an aragonite-natrojarosite mixture, natrojarosite-gypsum mixtures (± quartz), and an anglesite-beaverite mixture. All red salts are hematite-quartz mixtures (± muscovite, ± calcite). All salts form by the oxidation...
Image
(a) Structure of <b>fibroferrite</b> viewed along [001]. Zeolitic water groups are...
Published: 01 December 2016
Fig. 1 (a) Structure of fibroferrite viewed along [001]. Zeolitic water groups are shown as blue spheres; (b) chains of cis corner-sharing octahedra decorated with SO 4 tetrahedra running along the [001] direction; (c) linear chain of Fe-octahedra linked via trans OH vertices in FeOHSO 4
Image
Hydrogen bonding network of <b>fibroferrite</b>, viewed approximately along the  c...
Published: 01 December 2016
Fig. 2 Hydrogen bonding network of fibroferrite, viewed approximately along the c axis. (online version in colour)
Image
FTIR powder spectra of <b>fibroferrite</b> collected at 77 K (top) and room temper...
Published: 01 December 2016
Fig. 4 FTIR powder spectra of fibroferrite collected at 77 K (top) and room temperature (down).
Image
FTIR spectrum of <b>fibroferrite</b> collected at room-temperature with unpolarize...
Published: 01 December 2016
Fig. 5 FTIR spectrum of fibroferrite collected at room-temperature with unpolarized light on a single fibrous crystal. In addition the combination bands in the NIR region are magnified. Due to the sample thickness intense bands are truncated.
Image
The room-temperature FTIR powder spectrum (up) of <b>fibroferrite</b> in the low-w...
Published: 01 December 2016
Fig. 6 The room-temperature FTIR powder spectrum (up) of fibroferrite in the low-wavenumber region compared with the Raman spectra (below) collected on a fiber oriented parallel and perpendicular to the laser polarization.
Image
Reflectance spectra of <b>fibroferrite</b>, a ferric iron-, hydroxide-, and water-...
Published: 01 September 2016
Figure 1 Reflectance spectra of fibroferrite, a ferric iron-, hydroxide-, and water-bearing sulfate showing how exposure to Mars surface conditions (21 days) can change its spectral reflectance properties, likely due to compositional and structural changes accompanying exposure. (Color online).
Image
Comparison of simulated PDF of 10 Å <b>fibroferrite</b>, M–T–M–T chain, sarmientit...
Published: 01 September 2015
Fig. 8. Comparison of simulated PDF of 10 Å fibroferrite, M–T–M–T chain, sarmientite, maxwellite, césarferreiraite, and scorodite with experimental PDF of ferric arsenate (digitized from Mikutta et al . 2014 ). Simulations performed by replacing S by As in fibroferrite, V by Fe in ladder-like
Journal Article
Published: 01 November 2013
American Mineralogist (2013) 98 (11-12): 1943–1965.
..., metasideronatrite, and slavikite exhibit Mössbauer spectra similar to those attributed to jarosite at Meridiani Planum. Fibroferrite and rhomboclase have parameters similar to those observed at Arad Samra, and copiapite and parabutlerite could be present at Tyrone Mount Darwin and Berkner Island. Unique mineral...
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Series: GSA Special Papers
Published: 01 December 2011
DOI: 10.1130/2011.2483(16)
... diapir, remnant blocks of basaltic rock are pervasively altered and contain copper and iron sulfides, as well as the secondary sulfates copiapite, fibroferrite, and jarosite (North Agate Fiord diapir). Alteration zones within poorly consolidated quartzitic sandstone consist of thin layers of goethite...
Journal Article
Published: 01 May 2008
American Mineralogist (2008) 93 (5-6): 728–739.
... closely related, structurally similar species, possibly mixed with other Fe 3+ sulfates such as butlerite or parabutlerite, or perhaps (para)coquimbite, fibroferrite, or metahohmanite. Such an assemblage is consistent with formation in a highly oxidized, relatively dehydrated environment with the bulk...
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Journal Article
Published: 01 November 1986
Canadian Journal of Earth Sciences (1986) 23 (11): 1774–1781.
... of the shales. At Sainte-Foy, fibroferrite, a fibrous iron–aluminum sulphate mineral, probably also contributed significantly to heaving. L'oxydation de la pyrite et la cristallisation de sulfates dans les fractures de la roche ont localement provoqué le soulèvement du sol de plus de 10 cm sous un collège...
Journal Article
Published: 01 June 1976
American Mineralogist (1976) 61 (5-6): 398–404.
...G. R. Rossman Abstract Optical and infrared absorption and magnetic susceptibility data are reported for the ferric iron hydroxy sulfate minerals and compounds: basic iron sulfate, Fe(0H)S0 4 ; butlerite, Fe(0H)S0 4 .2H 2 0; parabutlerite, Fe(0H)S0 4 .2H 2 0; fibroferrite, Fe(0H)S0 4 .5H 2 0...
Journal Article
Published: 01 June 1955
American Mineralogist (1955) 40 (5-6): 469–480.
.... It is associated with coquimbite, halotrichite, roemerite, alunogen, copiapite, fibroferrite, melanterite and other sulfates, which comprise the cementing material of a talus slope below a small, pyrite-rich uranium deposit in the Triassic Shinarump conglomerate. Crystals are commonly singly terminated, monoclinic...
Journal Article
Published: 01 July 1927
American Mineralogist (1927) 12 (7): 279–283.
... locality has hitherto been given for its occurrence, it was thought worthy of note. It was mentioned as one of the interesting secondary minerals from the pyrrhotite with claudetite, bieberite, goslarite, fibroferrite, and morenosite by Dr. Eakle 1 in his bulletin, but no description of the crystals...
Image
Comparison of the room-temperature FTIR powder (top) and Raman spectra (dow...
Published: 01 December 2016
Fig. 3 Comparison of the room-temperature FTIR powder (top) and Raman spectra (down) of fibroferrite in the O-H stretching region. Raman spectra were collected on a fiber oriented parallel and perpendicular to the laser polarization.