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Ferri-clinoholmquistite |
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Iezzi G, Camara F, Della Ventura G, Oberti R, Pedrazzi G, Robert J-L |
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Physics and Chemistry of Minerals 31 (2004) 375-385 |
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Synthesis, crystal structure and crystal chemistry of ferri-clinoholmquistite, |
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_Li2Mg3Fe3+2Si8O22(OH)2 |
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Sample: 152 |
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_database_code_amcsd 0008866 |
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9.466 17.970 5.288 90 101.84 90 C2/m |
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atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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LiA2 0 .44 .5 .10 |
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Mg1 0 .0883 .5 .80 1.0 .0028 .0002 .0174 0 .0020 0 |
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Fe2+1 0 .0883 .5 .20 1.0 .0028 .0002 .0174 0 .0020 0 |
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Fe3+2 0 .1811 0 .52 .6 .0027 .0002 .0067 0 .0015 0 |
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Mg2 0 .1811 0 .48 .6 .0027 .0002 .0067 0 .0015 0 |
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Mg3 0 0 0 .80 .5 .0026 .0003 .0031 0 .0005 0 |
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Fe2+3 0 0 0 .20 .5 .0026 .0003 .0031 0 .0005 0 |
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Li4 0 .2566 .5 .63 1.5 .0035 .0008 .0227 0 .0044 0 |
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Fe2+4 0 .2566 .5 .225 1.5 .0035 .0008 .0227 0 .0044 0 |
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Mg4 0 .2566 .5 .145 1.5 .0035 .0008 .0227 0 .0044 0 |
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Si1 .2883 .0852 .2723 .7 .0024 .0002 .0110 .0001 .0019 .0004 |
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Si2 .2978 .1702 .7835 .6 .0027 .0002 .0066 .0004 .0009 .0003 |
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O1 .1145 .0879 .2067 1.1 .0037 .0006 .0124 .0007 .0009 .0008 |
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O2 .1225 .1725 .7238 .8 .0034 .0001 .0116 0 .0003 .0004 |
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O3 .1115 0 .7017 1.0 .0018 .0000 .0238 0 .0025 0 |
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O4 .3760 .2487 .7705 1.0 .0030 .0007 .0099 .0004 .0008 .0003 |
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O5 .3522 .1303 .0587 .9 .0028 .0008 .0052 .0001 .0023 .0014 |
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O6 .3481 .1189 .5583 1.1 .0025 .0014 .0053 .0011 .0001 .0020 |
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O7 .3425 0 .2740 1.1 .0036 .0000 .0229 0 .0046 0 |
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H .19 0 .74 1.0 |
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