Cordierite
Koepke J, Schulz H
Physics and Chemistry of Minerals 13 (1986) 165-173
Single crystal structure investigations under high-pressure of the
mineral cordierite with an improved high-pressure cell
Sample: P = 1.2 GPa
Locality: Zabargad island, Red Sea
_database_code_amcsd 0007386
17.013 9.680 9.3035 90 90 90 Cccm
atom      x     y     z  Uiso
Mg    .1622    .5   .25 .0069
Al11    .25   .25 .2503 .0072
Si16      0    .5   .25 .0061
Si21  .1930 .0779     0 .0042
Al26  .0506 .3083     0 .0051
Si23 -.1351 .2374     0 .0057
O11   .2474 .1031 .1421 .0068
O16   .0624 .4154 .1506 .0078
O13  -.1733 .3116 .1423 .0078
O21   .1228 .1851     0 .0112
O26  -.0428 .2480     0 .0082
O23  -.1647 .0806     0 .0106