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[ Last edited by linhua0402313 on 2015-10-22 at 08:30 ]
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*data for   ICSD #71810
Coll Code   71810
Rec  Date   1993/08/22
Mod  Date   2005/10/01
Chem Name   Iron(III) Oxide Hydroxide
Structured  Fe O (O H)
Sum         H1 Fe1 O2
ANX         AX2
Min Name    Goethite
D(calc)     4.26
Title       Rietveld studies of the aluminium-iron substitution in synthetic
            goethite
Author(s)   Hazemann, J.L.;Berar, J.F.;Manceau, A.
Reference   Materials Science Forum
            (1991), 79, 821-826
            Physics and Chemistry of Minerals (Germany)
            (1992), 19, 25-38
Unit Cell   4.6048(1) 9.9595 3.023 90. 90. 90.
Vol         138.64
Z           4
Space Group P b n m
SG Number   62
Cryst Sys   orthorhombic
Pearson     oP16
Wyckoff     c3
R Value     .06
Red Cell    P  3.023 4.604 9.959 90 90 90 138.639
Trans Red   0.000 0.000 1.000 / 1.000 0.000 0.000 / 0.000 1.000 0.000
Comments    Incorporates up to 33 at% Al
            Compound with mineral name: Goethite
            The structure has been assigned a PDF number (calculated
            powder diffraction data): 01-081-0464
            The structure has been assigned a PDF number (experimental
            powder diffraction data): 29-713
            Rietveld profile refinement applied
            Structure type : AlOOH(Diaspore)
            X-ray diffraction (powder)
            Unusual difference between calculated and measured density
            At least one temperature factor missing in the paper.
            Position of 4 Elements of H Are Undetermined.
Atom  #   OX   SITE      x           y           z           SOF      H
Fe   1  +3    4 c   0.0477      0.8539      0.25           1.         0   
O    1  -2    4 c   0.708       0.1996      0.25           1.         0   
O    2  -2    4 c   0.204       0.0531      0.25           1.         H1   
*end for    ICSD #71810
2Â¥2015-11-06 17:02:59
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2Â¥: Originally posted by xxxlllxxx at 2015-11-06 17:02:59
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*data for   ICSD #71810
Coll Code   71810
Rec  Date   1993/08/22
Mod  Date   2005/10/01
Chem Name   Iron(III) Oxide Hydroxide
Structured  Fe O (O H)
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