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
Sample: 0.5H-beta
_database_code_amcsd 0008219
5.675 11.579 8.244 90 90.09 90 *I2/m
.25 .25 .25
atom       x     y     z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
MgM1       0     0     0      .88  .0104  .0006  .0036  .0001  .0012  .0004
MgM2   .0008   .25 .9683 .92  .56  .0071  .0008  .0013      0  .0001      0
MgM3a    .25 .1209   .25 .76  .83  .0079  .0016  .0023      0  .0000      0
MgM3b    3/4 .3794   .25 .76  .71  .0064  .0013  .0023      0  .0005      0
Si     .0001 .1207 .6156      .84  .0061  .0016  .0033 -.0001  .0001 -.0004
O1    -.0007   .25 .2265      .81  .0027  .0018  .0041      0 -.0019      0
O2     .0033   .25 .7184      .66  .0061  .0014  .0018      0  .0002      0
O3     .0022 .9855 .2580     1.55  .0124  .0029  .0057  .0008  .0014  .0010
O4a    .2608 .1242 .9951      .86  .0059  .0017  .0034 -.0015  .0005 -.0002
O4b    .7399 .3761 .9942      .82  .0048  .0013  .0042 -.0014  .0008 -.0003