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![The crystal structure of sideronatrite seen along the a axis. The unit cell and the proposed hydrogen-bond system in sideronatrite are outlined.]()
![(a) Structure of sideronatrite viewed along the a axis. The unit cell and hydrogen bonds linking adjacent layers are outlined (after Scordari and Ventruti, 2009). (b) Sideronatrite chains viewed along the b axis. The hydrogen bond connecting parallel chains along a direction is indicated (after Scordari and Ventruti, 2009).]()
![Comparison of the hydrogen-bond systems between (a) sideronatrite-2M (seen along the b axis) and (b) sideronatrite-2O (seen along the a axis). FeO6 octahedra (dark yellow); SO4 tetrahedra (yellow); NaO6 polyhedra (light blue); O (small red circles); OH and Ow(large red circles); H (grey circles). The unit cells and the cross-linked hydrogen-bonds of adjacent layers in structures are outlined.]()
![Single-crystal unpolarized spectrum of sideronatrite in the NIR region.]()
![FTIR powder spectra of sideronatrite in the principal OH-stretching region, collected at 298K and 80K, respectively.]()
![Room-T FTIR powder spectrum of sideronatrite in the low-frequency 1400–400 cm−1 region.]()
![(Top) General view of the crystal structure of calamaite [projection along the c axis, the unit cell is outlined; H2O molecules are blue balls, Na atoms are green balls]; (bottom) heteropolyhedral chains topologically identical to those in calamaite but connected via NaOnpolyhedra to form layers in the structure of sideronatrite, Na2Fe3+(OH)(SO4)2 · 3H2O (lower left; drawn based on data by Scordari & Ventruti, 2009). The same heteropolyhedral chains are interconnected via NaOn polyhedra into framework in metasideronatrite, Na2Fe(SO4)2OH · (H2O) (lower right; drawn based on data by Ventruti et al., 2010). Note: the heteropolyhedral chains in calamaite, sideronatrite and metasideronatrite run along the c axis.]()
![A comparative view of the octahedral-tetrahedral chains present in sideronatrite (left) and in Na3Fe(SO4)3 (right).]()
![The 80K FTIR powder spectrum of sideronatrite decomposed into single bands. Open squares: experimental points; continuous line: fitted curve.]()
![Corrugated layers present in sideronatrite-2M viewed along the b direction. [Fe3+(SO4)2OH]2− chains run parallel to the a axis and are linked together by Na[6]-coo6rdinated polyhedra. The unit cell is outlined. FeO6 octahedra (dark yellow); SO4 tetrahedra (yellow); NaO6 polyhedra (light blue); O (small red circles); OH and Ow (large red circles); H (grey circles). Àll crystal structure drawings were done with the program package ATOMS (Dowty, 2011).]()
![Corrugated layers present in sideronatrite-2M viewed onto (100). FeO6 octahedra (dark yellow); SO4 tetrahedra (yellow); NaO6 polyhedra (light blue); O (small red circles); OH and Ow (large red circles); H (grey circles).]()
![The hydrogen-bond system in sideronatrite-2M seen along the b direction. FeO6 octahedra (dark yellow); SO4 tetrahedra (yellow); NaO6 polyhedra (light blue); O (small red circles); OH and OW (large red circles); H (grey circles).]()
![Corrugated layers present in sideronatrite showing the edge-sharing (O1-O8, O7-Ow2) between Na polyhedra and the relationships between Na-columns and Fe-S chains.]()
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sideronatrite
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Journal Article
Crystal structure of sideronatrite-2 M , Na 2 Fe(SO 4 ) 2 (OH)(H 2 O) 3 , a new polytype from Xitieshan lead-zinc deposit, Qinghai Province, China Available to Purchase
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 June 2015
European Journal of Mineralogy (2015) 27 (3): 427–432.
...Zhuming Yang; Gerald Giester; Kuishou Ding; He Li Abstract: A monoclinic (2 M ) polytype of sideronatrite, Na 2 Fe(SO 4 ) 2 (OH)(H 2 O) 3 , was found at Xitieshan, Qinghai Province, China. The crystal structure was solved by direct methods and refined by full-matrix least-squares ( R 1 = 3.88...
FIGURES
Includes: Supplemental Content
Journal Article
FTIR transmission spectroscopy of sideronatrite, a sodium-iron hydrous sulfate Available to Purchase
Journal: Mineralogical Magazine
Published: 01 June 2013
Mineralogical Magazine (2013) 77 (4): 499–507.
...G. Della Ventura; G. Ventruti; F. Bellatreccia; F. Scordari; M. Cestelli Guidi Abstract This paper relates an infrared (IR) (6000–2500; 1400–400 cm −1 ) spectroscopic study of sideronatrite, Na 2 Fe 3+ (SO 4 ) 2 (OH)·3H 2 O. Spectra in the 600–1250 cm −1 range are dominated by fundamental S–O...
FIGURES
Journal Article
Crystal structure of Na 3 Fe(SO 4 ) 3 : A high-temperature product (~400 °C) of sideronatrite [Na 2 Fe(SO 4 ) 2 OH·3H 2 O] Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 July 2011
American Mineralogist (2011) 96 (7): 1107–1111.
...Fernando Scordari; Gennaro Ventruti; Alessandro F. Gualtieri; Andrea Lausi Abstract The iron sulfate Na 3 Fe(SO 4 ) 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 Na 2 Fe(SO 4...
FIGURES
Includes: Supplemental Content
Journal Article
Metasideronatrite: Crystal structure and its relation with sideronatrite Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 February 2010
American Mineralogist (2010) 95 (2-3): 329–334.
...Gennaro Ventruti; Francesca Stasi; Fernando Scordari Abstract Metasideronatrite was obtained as the first dehydration product of sideronatrite, Na 2 Fe(SO 4 ) 2 (OH)·3H 2 O, from Sierra Gorda, Chile. The crystal structure of metasideronatrite was solved by direct methods and refined by full-matrix...
FIGURES
Journal Article
Sideronatrite, Na 2 Fe(SO 4 ) 2 (OH)·3H 2 O: Crystal structure of the orthorhombic polytype and OD character analysis Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 November 2009
American Mineralogist (2009) 94 (11-12): 1679–1686.
...Fernando Scordari; Gennaro Ventruti Abstract Sideronatrite, Na 2 Fe(SO 4 ) 2 (OH) ·3H 2 O, is a secondary hydrated sulfate occurring in desert areas as the result of pyrite alteration. It is one of the environmental indicators of soil-water processes operating in specific landscapes...
FIGURES
Journal Article
Sideronatrite and metasideronatrite efflorescence formed in a coastal sea-spray environment Available to Purchase
Journal: Mineralogical Magazine
Published: 01 October 1999
Mineralogical Magazine (1999) 63 (5): 757–759.
...L. A. J. Garvie Abstract Sideronatrite [Na 2 Fe(SO 4 ) 2 (OH).3H 2 O] occurs as yellow botryoidal encrustations on low cliffs of weathered pyrite-bearing mudstones at Barton-on-Sea, Hampshire, England. Extensive areas of the cliffs, up to approximately 100 m 2 , are coated with sideronatrite...
Image
The crystal structure of sideronatrite seen along the a axis. The unit ce... Available to Purchase
in Sideronatrite, Na 2 Fe(SO 4 ) 2 (OH)·3H 2 O: Crystal structure of the orthorhombic polytype and OD character analysis
> American Mineralogist
Published: 01 November 2009
F igure 1. The crystal structure of sideronatrite seen along the a axis. The unit cell and the proposed hydrogen-bond system in sideronatrite are outlined.
Image
( a ) Structure of sideronatrite viewed along the a axis. The unit cell and... Available to Purchase
in FTIR transmission spectroscopy of sideronatrite, a sodium-iron hydrous sulfate
> Mineralogical Magazine
Published: 01 June 2013
F ig . 1. ( a ) Structure of sideronatrite viewed along the a axis. The unit cell and hydrogen bonds linking adjacent layers are outlined (after Scordari and Ventruti, 2009 ). ( b ) Sideronatrite chains viewed along the b axis. The hydrogen bond connecting parallel chains along a direction
Image
Comparison of the hydrogen-bond systems between (a) sideronatrite-2 M (see... Available to Purchase
in Crystal structure of sideronatrite-2 M , Na 2 Fe(SO 4 ) 2 (OH)(H 2 O) 3 , a new polytype from Xitieshan lead-zinc deposit, Qinghai Province, China
> European Journal of Mineralogy
Published: 01 June 2015
Fig. 4. Comparison of the hydrogen-bond systems between (a) sideronatrite-2 M (seen along the b axis) and (b) sideronatrite-2 O (seen along the a axis). FeO 6 octahedra (dark yellow); SO 4 tetrahedra (yellow); NaO 6 polyhedra (light blue); O (small red circles); O H and O w (large red
Image
Single-crystal unpolarized spectrum of sideronatrite in the NIR region. Available to Purchase
in FTIR transmission spectroscopy of sideronatrite, a sodium-iron hydrous sulfate
> Mineralogical Magazine
Published: 01 June 2013
F ig . 4. Single-crystal unpolarized spectrum of sideronatrite in the NIR region.
Journal Article
Unit cell and X-ray powder data for metasideronatrite Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 December 1973
American Mineralogist (1973) 58 (11-12): 1080–1081.
... and that produced from sideronatrite by dehydration over sulphuric acid by Cesbron (1964) shows some differences, possibly due to a difference in water content. Powder data for metasideronatrite and sideronatrite, Na 4 Fe 2 (SO 4 ) 4 (OH) 2 ·6H 2 O are distinctly different. 15 6 1973 24 7 1973...
Image
FTIR powder spectra of sideronatrite in the principal OH-stretching region,... Available to Purchase
in FTIR transmission spectroscopy of sideronatrite, a sodium-iron hydrous sulfate
> Mineralogical Magazine
Published: 01 June 2013
F ig . 3. FTIR powder spectra of sideronatrite in the principal OH-stretching region, collected at 298K and 80K, respectively.
Image
Room- T FTIR powder spectrum of sideronatrite in the low-frequency 1400–40... Available to Purchase
in FTIR transmission spectroscopy of sideronatrite, a sodium-iron hydrous sulfate
> Mineralogical Magazine
Published: 01 June 2013
F ig . 2. Room- T FTIR powder spectrum of sideronatrite in the low-frequency 1400–400 cm −1 region.
Image
![(Top) General view of the crystal structure of calamaite [projection along the c axis, the unit cell is outlined; H2O molecules are blue balls, Na atoms are green balls]; (bottom) heteropolyhedral chains topologically identical to those in calamaite but connected via NaOnpolyhedra to form layers in the structure of sideronatrite, Na2Fe3+(OH)(SO4)2 · 3H2O (lower left; drawn based on data by Scordari & Ventruti, 2009). The same heteropolyhedral chains are interconnected via NaOn polyhedra into framework in metasideronatrite, Na2Fe(SO4)2OH · (H2O) (lower right; drawn based on data by Ventruti et al., 2010). Note: the heteropolyhedral chains in calamaite, sideronatrite and metasideronatrite run along the c axis.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/eurjmin/30/4/10.1127_ejm_2018_0030-2738/3/s_ejm_30_4_0801_0809_pekov_2738_online_fig5.jpeg?Expires=2147483647&Signature=OkB7F0xNjxd7aoq6YclNzld9s2CPtdURxQJNZtKvJfsFSMyFgSHe~1U18r3YTvofE~S2cbqH6MFAwGMuyQ5fkuGrtZLOHx3djnNUDegKUw279Y5mhQXFIw~l3G7063N1-RWhwMdvzTup5KLzhQKW88RkwoEZH3FLR~bCvAYJTca7P8ebv2hXiwVDhcaLfvoTvF1y9-mpV8OEB-ot7WJM5XxhAHp71zHuO1GbJ5pWMhVc33kOmnHfWblldi1BP8jmfI-s2kJBrBHfvZZbT3fXoHiscPYn0Ed67gv3x-sVjbQjzEu5rLNLct7Dml3QxQcAgNTfF6kVxvqSVee4UELDvg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
(Top) General view of the crystal structure of calamaite [projection along ... Available to Purchase
in Calamaite, a new natural titanium sulfate from the Alcaparrosa mine, Calama, Antofagasta region, Chile
> European Journal of Mineralogy
Published: 01 July 2018
to form layers in the structure of sideronatrite, Na 2 Fe 3+ (OH)(SO 4 ) 2 · 3H 2 O (lower left; drawn based on data by Scordari & Ventruti, 2009 ). The same heteropolyhedral chains are interconnected via NaO n polyhedra into framework in metasideronatrite, Na 2 Fe(SO 4 ) 2 OH · (H 2 O) (lower
Image
A comparative view of the octahedral-tetrahedral chains present in siderona... Available to Purchase
in Crystal structure of Na 3 Fe(SO 4 ) 3 : A high-temperature product (~400 °C) of sideronatrite [Na 2 Fe(SO 4 ) 2 OH·3H 2 O]
> American Mineralogist
Published: 01 July 2011
F igure 4. A comparative view of the octahedral-tetrahedral chains present in sideronatrite ( left ) and in Na 3 Fe(SO 4 ) 3 ( right ).
Image
The 80K FTIR powder spectrum of sideronatrite decomposed into single bands.... Available to Purchase
in FTIR transmission spectroscopy of sideronatrite, a sodium-iron hydrous sulfate
> Mineralogical Magazine
Published: 01 June 2013
F ig . 5. The 80K FTIR powder spectrum of sideronatrite decomposed into single bands. Open squares: experimental points; continuous line: fitted curve.
Image
![Corrugated layers present in sideronatrite-2M viewed along the b direction. [Fe3+(SO4)2OH]2− chains run parallel to the a axis and are linked together by Na[6]-coo6rdinated polyhedra. The unit cell is outlined. FeO6 octahedra (dark yellow); SO4 tetrahedra (yellow); NaO6 polyhedra (light blue); O (small red circles); OH and Ow (large red circles); H (grey circles). Àll crystal structure drawings were done with the program package ATOMS (Dowty, 2011).](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/eurjmin/27/3/10.1127_ejm_2015_0027-2441/2/s_0427_fig1_ejm27_3_0427_0432_yang.jpeg?Expires=2147483647&Signature=pi6xCw7SDyMYddvniz9nmBDEBTrXSVTBg8opbiRnCcz8yb8sJ4s~tzJ6JCXwvUzCvq4Y19LT0llE5gE~c6HQEE2nHqbMXOjMvr8mS9YsUofvmInPwU-qe8kXZJzuf-u9672juAo25ew6TIMogfZx5GvzjViZCaO1VTXujIqy26dYr6r5rdQOG9DQsA~KrTYXoMBLN-QROQjcS2hxQ25tRJjpKI~oFqBF8HE2dmWO5wSUE3WbP78LVbJwO2DDrgF8d19cCtoPBJYLp6VJ758VikP5CfIhyxkJCzDlbc~6qGGSY~TonRs5F7~KluOOhgA8ARII9fPKUWlAXEzvYGmBXA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Corrugated layers present in sideronatrite-2 M viewed along the b direct... Available to Purchase
in Crystal structure of sideronatrite-2 M , Na 2 Fe(SO 4 ) 2 (OH)(H 2 O) 3 , a new polytype from Xitieshan lead-zinc deposit, Qinghai Province, China
> European Journal of Mineralogy
Published: 01 June 2015
Fig. 1. Corrugated layers present in sideronatrite-2 M viewed along the b direction. [Fe 3 +(SO 4 ) 2 OH] 2− chains run parallel to the a axis and are linked together by Na [6] -coo6rdinated polyhedra. The unit cell is outlined. FeO 6 octahedra (dark yellow); SO 4 tetrahedra (yellow); NaO
Image
Corrugated layers present in sideronatrite-2 M viewed onto (100). FeO 6 o... Available to Purchase
in Crystal structure of sideronatrite-2 M , Na 2 Fe(SO 4 ) 2 (OH)(H 2 O) 3 , a new polytype from Xitieshan lead-zinc deposit, Qinghai Province, China
> European Journal of Mineralogy
Published: 01 June 2015
Fig. 2. Corrugated layers present in sideronatrite-2 M viewed onto (100). FeO 6 octahedra (dark yellow); SO 4 tetrahedra (yellow); NaO 6 polyhedra (light blue); O (small red circles); O H and O w (large red circles); H (grey circles).
Image
The hydrogen-bond system in sideronatrite-2 M seen along the b direction... Available to Purchase
in Crystal structure of sideronatrite-2 M , Na 2 Fe(SO 4 ) 2 (OH)(H 2 O) 3 , a new polytype from Xitieshan lead-zinc deposit, Qinghai Province, China
> European Journal of Mineralogy
Published: 01 June 2015
Fig. 3. The hydrogen-bond system in sideronatrite-2 M seen along the b direction. FeO 6 octahedra (dark yellow); SO 4 tetrahedra (yellow); NaO 6 polyhedra (light blue); O (small red circles); O H and O W (large red circles); H (grey circles).
Image
Corrugated layers present in sideronatrite showing the edge-sharing (O1-O8,... Available to Purchase
in Sideronatrite, Na 2 Fe(SO 4 ) 2 (OH)·3H 2 O: Crystal structure of the orthorhombic polytype and OD character analysis
> American Mineralogist
Published: 01 November 2009
F igure 2. Corrugated layers present in sideronatrite showing the edge-sharing (O1-O8, O7-Ow2) between Na polyhedra and the relationships between Na-columns and Fe-S chains.
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