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Wadsleyite |
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Kudoh Y, Inoue T, Arashi H |
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Physics and Chemistry of Minerals 23 (1996) 461-469 |
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Structure and crystal chemistry of hydrous wadsleyite, Mg1.75SiH0.5O4: |
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possible hydrous magnesium silicate in the mantle transition zone |
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Locality: synthetic |
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_database_code_amcsd 0007971 |
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5.663 11.546 8.247 90 90 90 Imma |
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atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Mg1 0 0 0 .97 1.0 .023 .004 .011 0 0 .003 |
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Mg2 0 1/4 .9694 .94 .6 .010 .008 .005 0 0 0 |
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Mg3 1/4 .1206 1/4 .78 1.00 .013 .015 .011 0 .002 0 |
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Si 0 .1208 .6155 .82 .010 .010 .012 0 0 -.002 |
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OH1 0 1/4 .229 .5 .000 .009 .011 0 0 0 |
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O2 0 1/4 .7187 .4 .009 .003 .004 0 0 0 |
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O3 0 .9856 .2571 1.5 .026 .013 .018 0 0 .003 |
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O4 .2607 .1242 .9949 .77 .008 .009 .012 -.014 .000 .002 |
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Wadsleyite |
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Kudoh Y, Inoue T |
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Physics and Chemistry of Minerals 26 (1999) 382-388 |
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Mg-vacant structural modules and dilution of the symmetry |
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of hydrous wadsleyite, beta-Mg2-xSiH2xO4 with 0.00<=x<=0.25 |
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Sample: 0.3H-beta |
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_database_code_amcsd 0008218 |
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5.674 11.477 8.235 90 90.21 90 *I2/m |
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.25 .25 .25 |
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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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MgM1 0 0 0 .98 .55 .0048 .0007 .0023 -.0001 .0003 .0002 |
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MgM2 -.0008 1/4 .9689 .94 .37 .0051 .0004 .0009 0 .0000 0 |
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MgM3a 1/4 .1244 1/4 .88 .46 .0042 .0008 .0017 0 .0000 0 |
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MgM3b 3/4 .3755 1/4 .84 .56 .0028 .0015 .0018 0 .0002 0 |
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Si -.0004 .1203 .6160 .45 .0038 .0009 .0015 -.0003 -.0003 .0000 |
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O1 .0002 1/4 .2226 .56 .0026 .0012 .0026 0 -.0005 0 |
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O2 .0007 1/4 .7173 .47 .0004 .0019 .0013 0 .0005 0 |
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O3 .0004 .9875 .2572 1.03 .0118 .0013 .0031 -.0002 -.0007 .0005 |
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O4a .2604 .1231 .9939 .65 .0042 .0011 .0029 .0000 .0002 .0003 |
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O4b .7393 .3767 .9935 .73 .0061 .0017 .0019 -.0001 .0001 .0001 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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Wadsleyite |
|
Kudoh Y, Inoue T |
| |
Physics and Chemistry of Minerals 26 (1999) 382-388 |
|
Mg-vacant structural modules and dilution of the symmetry |
|
of hydrous wadsleyite, beta-Mg2-xSiH2xO4 with 0.00<=x<=0.25 |
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Sample: 0.5H-beta |
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_database_code_amcsd 0008219 |
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5.675 11.579 8.244 90 90.09 90 *I2/m |
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.25 .25 .25 |
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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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MgM1 0 0 0 .88 .0104 .0006 .0036 .0001 .0012 .0004 |
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MgM2 .0008 1/4 .9683 .92 .56 .0071 .0008 .0013 0 .0001 0 |
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MgM3a 1/4 .1209 1/4 .76 .83 .0079 .0016 .0023 0 .0000 0 |
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MgM3b 3/4 .3794 1/4 .76 .71 .0064 .0013 .0023 0 .0005 0 |
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Si .0001 .1207 .6156 .84 .0061 .0016 .0033 -.0001 .0001 -.0004 |
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O1 -.0007 1/4 .2265 .81 .0027 .0018 .0041 0 -.0019 0 |
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O2 .0033 1/4 .7184 .66 .0061 .0014 .0018 0 .0002 0 |
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O3 .0022 .9855 .2580 1.55 .0124 .0029 .0057 .0008 .0014 .0010 |
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O4a .2608 .1242 .9951 .86 .0059 .0017 .0034 -.0015 .0005 -.0002 |
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O4b .7399 .3761 .9942 .82 .0048 .0013 .0042 -.0014 .0008 -.0003 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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