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ferristrunzite

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Journal Article
Published: 01 August 2013
American Mineralogist (2013) 98 (8-9): 1497–1507.
...Antoine Van Alboom; Eddy De Grave Abstract The temperature variations of the ferric and ferrous hyperfine fields in natural samples of strunzite, ferristrunzite, and ferrostrunzite are examined by Mössbauer spectroscopy between 4.2 K and their respective magnetic transition temperatures...
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Journal Article
Published: 01 October 2017
Mineralogical Magazine (2017) 81 (5): 1051–1062.
... microprobe analyses of samples from the two localities show quite different cation substitutions. The Hagendorf Süd mineral is a Zn-bearing ferristrunzite, with compositional zoning due to Zn 2+ replacing predominantly Fe 3+ as well as minor Mn 2+ , whereas the Portugese mineral is a Zn-bearing strunzite...
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Journal Article
Published: 01 April 2018
Mineralogical Magazine (2018) 82 (2): 291–299.
...Ian E. Grey; Anthony R. Kampf ABSTRACT The crystal structures have been refined for the first time for the strunzite-group minerals ferristrunzite and ferrostrunzite. Structure refinements are also presented for strunzite from three different localities. A common feature of all refined structural...
FIGURES
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Data collection and refinement details for Zn-bearing <b>ferristrunzite</b> and zi...
Published: 01 October 2017
Table 2. Data collection and refinement details for Zn-bearing ferristrunzite and zincostrunzite from Hagendorf Süd. Zn-bearing ferristrunzite Zincostrunzite Formula M (PO 4 ) 2 (OH) 2±x (H 2 O) 6±x ·0.5H 2 O Occupancy of M 0.52Fe 3+  + 0.38Mn 2+  + 0.10Zn 0.10Fe 3
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Zn-bearing <b>ferristrunzite</b> crystals in hand specimen from Hagendorf Süd. The...
Published: 01 October 2017
Fig. 2. Zn-bearing ferristrunzite crystals in hand specimen from Hagendorf Süd. The associated fan-like clusters are crystals of whitmoreite/earlshannonite.
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Experimental and calculated MS for <b>ferristrunzite</b> at 4.2 K. S1 = blue; S2 =...
Published: 01 August 2013
Figure 3 Experimental and calculated MS for ferristrunzite at 4.2 K. S1 = blue; S2 = purple; S3 = magenta; D1 = orange; calculated MS = red. Parameters are in Table 1 . (Color online.) Experimental and calculated MS for ferristrunzite and corresponding probability histograms for the hyperfine
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Experimental and calculated MS for <b>ferristrunzite</b> at 4.2 K. S1 = blue; S2 =...
Published: 01 August 2013
Figure 3 Experimental and calculated MS for ferristrunzite at 4.2 K. S1 = blue; S2 = purple; S3 = magenta; D1 = orange; calculated MS = red. Parameters are in Table 1 . (Color online.) Experimental and calculated MS for ferristrunzite and corresponding probability histograms for the hyperfine
Journal Article
Published: 01 April 2014
The Canadian Mineralogist (2014) 52 (2): 373–397.
... hureaulite); ferrisicklerite is altered to Fe 2+ -, Mn 2+ -, and Fe 3+ -bearing phosphate minerals such as jahnsite s.l. , frondelite s.l., and orange hureaulite; heterosite is replaced by Fe 3+ -bearing species such as ferristrunzite. Consequently, it appears that the secondary phosphate minerals, which...
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Journal Article
Published: 01 May 2008
American Mineralogist (2008) 93 (5-6): 728–739.
...-sulfate assemblage having OH/(OH + 2SO 4 ) of < ~0.4. Some Fe 3+ is likely to be associated with phosphates in the soil in the form of ferristrunzite or strengite. * E-mail: lane@psi.edu 03 12 2007 01 08 2007 © 2008 American Mineralogist 2008 Mars spectroscopy sulfate...
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Electron microprobe results (atoms per formula unit) for a zoned crystal of...
Published: 01 October 2017
Fig. 1. Electron microprobe results (atoms per formula unit) for a zoned crystal of Zn-bearing ferristrunzite from Hagendorf Süd.
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Plot of atoms of Zn apfu  vs.  Fe + Mn apfu, using EMP results for Zn-beari...
Published: 01 October 2017
Fig. 3. Plot of atoms of Zn apfu vs. Fe + Mn apfu, using EMP results for Zn-bearing ferristrunzite and zincostrunzite from Hagendorf Süd.
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T -dependence of the hyperfine fields (most probable values) in ( a ) ferri...
Published: 01 August 2013
Figure 6 T -dependence of the hyperfine fields (most probable values) in ( a ) ferristrunzite, ( b ) strunzite, and ( c ) ferrostrunzite. Dotted lines are calculated Brillouin curves. Full lines are calculated accounting for exchange magnetostriction (see text) ( Bean and Rodbell 1962 ). S1
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Hyperspectral VNIR reflectance spectra of sulfate and phosphate minerals: f...
Published: 01 May 2008
F igure 4. Hyperspectral VNIR reflectance spectra of sulfate and phosphate minerals: ferricopiapite ML-S35, fibroferrite SPT121, (para)coquimbite ML-S46, jarosite JB53, rhomboclase 81268, kornelite R16185, yavapaiite ML-S79, ferristrunzite HMM108175, wavellite ML-P9, and scholzite ML-P11.
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Mini-TES spectrum of the bright Paso Robles track soil and its modeled fit ...
Published: 01 May 2008
F igure 6. Mini-TES spectrum of the bright Paso Robles track soil and its modeled fit (RMS = 0.118%) using laboratory mineral spectra. Also shown are the deconvolution-selected laboratory spectrum of the Fe 3+ sulfate ferricopiapite and the spectrum of the Fe 3+ phosphate ferristrunzite
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Pancam I/F spectra of Paso Robles end-members compared to laboratory reflec...
Published: 01 May 2008
. The laboratory spectra were convolved to the 11 Pancam channels and include ferricopiapite ML-S35, fibroferrite SPT121, (para)coquimbite ML-S46, jarosite JB53, rhomboclase 81268, kornelite R16185, yavapaiite ML-S79, ferristrunzite HMM108175, wavellite ML-P9, and scholzite ML-P11.
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Phosphate minerals from association II: progressive topotatic oxidation of ...
Published: 01 April 2014
-polarized light. (d) Oxidation of ferrisicklerite to heterosite (Het). Orange hureaulite (Or. Hur) appears in the cleavage planes of ferrisicklerite and oxide minerals (ox) and yellow ferristrunzite (frst) in the cleavage planes of heterosite. Association II, Joc-11, plane-polarized light.
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Atom coordinates (×10 4 ) and equivalent isotropic displacement parameters ...
Published: 01 April 2018
Table 3. Atom coordinates (×10 4 ) and equivalent isotropic displacement parameters (×10 3 ) for ferrostrunzite and ferristrunzite. Ferrostrunzite * Ferristrunzite x y z U eq x y z U eq Fe 5039(1) 3340(1) 2443(1) 16(1)   5120(1) 3415(1) 2592(1
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Crystal data for phosphate and phosphate-sulfate minerals with only Fe 3+  ...
Published: 01 February 2017
Koninckite n.d. 11.95–11.977 11.95–11.977 14.52–14.625 Sakurai et al . (1987) Fe (PO 4 ) 2 (OH) 3 ·5H 2 O Ferristrunzite P or P 1 2 10.01 90.50 9.73 96.99 7.334 116.43 Peacor et al . (1987) Fe (PO 4 ) 2 (OH) 3 ·5H 2 O Allanpringite P 2 1 / n 4 9.777 7.358 92.19 17.380
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Crystal data for phosphate and phosphate-sulfate minerals with only Fe 3+  ...
Published: 01 February 2017
Koninckite n.d. 11.95–11.977 11.95–11.977 14.52–14.625 Sakurai et al . (1987) Fe (PO 4 ) 2 (OH) 3 ·5H 2 O Ferristrunzite P or P 1 2 10.01 90.50 9.73 96.99 7.334 116.43 Peacor et al . (1987) Fe (PO 4 ) 2 (OH) 3 ·5H 2 O Allanpringite P 2 1 / n 4 9.777 7.358 92.19 17.380
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Crystal data for phosphate and phosphate-sulfate minerals with only Fe 3+  ...
Published: 01 February 2017
Koninckite n.d. 11.95–11.977 11.95–11.977 14.52–14.625 Sakurai et al . (1987) Fe (PO 4 ) 2 (OH) 3 ·5H 2 O Ferristrunzite P or P 1 2 10.01 90.50 9.73 96.99 7.334 116.43 Peacor et al . (1987) Fe (PO 4 ) 2 (OH) 3 ·5H 2 O Allanpringite P 2 1 / n 4 9.777 7.358 92.19 17.380