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 = 0.1 MPa
Locality: Zabargad island, Red Sea
_database_code_amcsd 0007383
17.071 9.715 9.344 90 90 90 Cccm
atom       x     y     z  Uiso
Mg    .16248    .5   .25 .0088
Al11     .25   .25 .2505 .0075
Si16       0    .5   .25 .0067
Si21  .19281 .0782     0 .0053
Al26   .0506 .3085     0 .0062
Si23 -.13544 .2376     0 .0060
O11    .2468 .1029 .1407 .0083
O16    .0625 .4156 .1506 .0084
O13   -.1733 .3100 .1413 .0077
O21    .1226 .1846     0 .0112
O26   -.0433 .2491     0 .0117
O23   -.1638 .0803     0 .0135