Mullite
Angel R J, Prewitt C T
American Mineralogist 71 (1986) 1476-1482
Crystal structure of mullite: A re-examination of the average structure
_database_code_amcsd 0001059
7.5785 7.6817 2.8864 90 90 90 Pbam
atom      x      y  z occ B(1,1) B(2,2) B(3,3)  B(1,2) B(1,3) B(2,3)
Al        0      0  0     .00311 .00266 .01660  .00023      0      0
AlT  .14901 .34026 .5 .56 .00255 .00310 .02206 -.00016      0      0
SiT  .14901 .34026 .5 .25 .00255 .00310 .02206 -.00016      0      0
AlT* .26247 .20529 .5 .13 .00248 .00326 .01628  .00012      0      0
SiT* .26247 .20529 .5 .06 .00248 .00326 .01628  .00012      0      0
Oab   .3590  .4218 .5      .0049  .0063  .0176  -.0024      0      0
Oc       .5      0 .5 .39  .0061  .0052  .0609  -.0012      0      0
Oc*   .4498  .0505 .5 .19  .0039  .0026  .0386  -.0003      0      0
Od    .1273  .2186  0      .0053  .0045  .0308  -.0022      0      0