Co2Al4Si5O18
Knorr K, Meschke M, Winkler B
Physics and Chemistry of Minerals 26 (1999) 521-529
Structural and magnetic properties of Co2Al4Si5O18
and Mn2Al4Si5O18 cordierite
_database_code_amcsd 0008229
9.841 9.841 9.372 90 90 120 P6/mcc
atom     x     y     z occ Biso
Co     1/3   2/3   .25      .99
AlT1    .5    .5   .25 2/3 1.99
SiT1    .5    .5   .25 1/3 1.99
AlT2  .367  .262     0 1/3 1.99
SiT2  .367  .262     0 2/3 1.99
O1   .4809 .3462 .1433      .01
O2   .2273 .3038     0      .01