Cordierite
Schwartz K B, Leong D B, McConville R L
Physics and Chemistry of Minerals 20 (1994) 563-574
Structural chemistry of synthetic cordierite: evidence for solid solutions
and disordered compositional domains in Bi-flux-grown Mg-cordierites
Sample: Synthesized in 10 at% bismuth oxide flux at 1000 C for 12 hours
Note: tetrahedral site occupancies are assumed, not refined
_database_code_amcsd 0007857
17.0409 9.7382 9.3285 90 90 90 Cccm
atom       x      y     z  occ Biso
MgM    .3376      0   .25      1.09
AlT11    .25    .25 .2526       .79
SiT16      0     .5   .25       .87
SiT21  .1915  .0795     0       .85
SiT23  .1348 -.2381     0       .74
AlT26  .0497  .3100     0       .69
O11    .2473 -.1038 .3581       .97
O16    .0633 -.4163 .3485       .89
O13   -.1733 -.3107 .3581       .82
O26    .0420 -.2504     0      1.43
O21    .1201  .1881     0      1.45
O23    .1639 -.0803     0      1.27
BiC1       0      0   .25 .105   12
BiC2       0      0     0 .039    8