Cordierite
Wallace J H, Wenk H R
American Mineralogist 65 (1980) 96-111
Structure variation in low cordierites
Note: sample sci 1542 mono
Locality: Passo di Mello, Bergell Alps, Switzerland
_database_code_amcsd 0000763
17.044 9.716 9.334 90 90 90 Cccm
atom       x       y      z  occ B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Mg1   .33742       0    .25 .900 .00041 .00121 .00193       0       0 -.00001
Fe1   .33742       0    .25 .068 .00041 .00121 .00193       0       0 -.00001
Al1      .25     .25 .25006 .962 .00044 .00096 .00104 0.00023       0       0
Si2        0      .5    .25 .876 .00028 .00115 .00076       0       0       0
Al2        0      .5    .25 .097 .00028 .00115 .00076       0       0       0
Si3   .19252  .07803      0 .963 .00031 .00069 .00102 0.00004       0       0
Si4   .13516 -.23731      0 .970 .00025 .00090 .00099 -.00005       0       0
Al5   .05083  .30791      0 .911 .00028 .00085 .00110 0.00008       0       0
Si5   .05083  .30791      0 .048 .00028 .00085 .00110 0.00008       0       0
O1    .24722 -.10301 .35881      .00078 .00155 .00176 -.00016 0.00032 -.00025
O2    .06220 -.41620 .34910      .00054 .00232 .00184 -.00014 0.00004 -.00057
O3   -.17326 -.31006 .35854      .00067 .00203 .00179 0.00023 -.00024 -.00026
O4    .04321 -.24815      0      .00051 .00299 .00371 -.00011       0       0
O5    .12231  .18464      0      .00074 .00239 .00361 0.00047       0       0
O6    .16468 -.07957      0      .00091 .00151 .00415 -.00027       0       0
OH1        0       0    .25 .740   .051   .026  0.011       0       0       0
OH2        0       0      0 .120   .001  -.001  0.510   0.002       0       0