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 = 2.2 GPa
Locality: Zabargad island, Red Sea
_database_code_amcsd 0007388
16.975 9.647 9.274 90 90 90 Cccm
atom      x     y     z  Uiso
Mg    .1622    .5   .25 .0074
Al11    .25   .25 .2473 .0076
Si16      0    .5   .25 .0032
Si21  .1938 .0770     0 .0063
Al26  .0520 .3055     0 .0069
Si23 -.1348 .2369     0 .0011
O11   .2473 .1033 .1426 .0058
O16   .0625 .4152 .1502 .0065
O13  -.1734 .3127 .1414 .0055
O21   .1227 .1833     0 .0050
O26  -.0430 .2441     0 .0182
O23  -.1646 .0812     0 .0098