Armalcolite
Wechsler B A
American Mineralogist 62 (1977) 913-920
Cation distribution and high-temperature crystal chemistry of armalcolite
sample Arm-E, T = 24 deg C, before annealing
_database_code_amcsd 0000590
9.7762 10.0341 3.7504 90 90 90 Bbmm
atom      x      y z  occ B(1,1) B(2,2) B(3,3)  B(1,2) B(1,3) B(2,3)
Fe1  .80743    .25 0 .332 .00139 .00157  .0194       0      0      0
Mg1  .80743    .25 0 .332 .00139 .00157  .0194       0      0      0
Ti1  .80743    .25 0 .335 .00139 .00157  .0194       0      0      0
Fe2  .13464 .43528 0 .084 .00128 .00174  .0170 -.00008      0      0
Mg2  .13464 .43528 0 .084 .00128 .00174  .0170 -.00008      0      0
Ti2  .13464 .43528 0 .832 .00128 .00174  .0170 -.00008      0      0
O1    .2243    .25 0       .0038  .0021  .0242       0      0      0
O2    .0464  .8846 0       .0020  .0019  .0311  -.0002      0      0
O3    .3133  .9348 0       .0024  .0030  .0157  -.0001      0      0