Moganite
Heaney P J, Post J E
American Mineralogist 86 (2001) 1358-1366
Evidence for an I2/a to Imab phase transition in the silica
polymorph moganite at ~570 K
Sample: T = 298 K, neutron
_database_code_amcsd 0002737
8.7371 4.8692 10.7217 90 90.193 90 I2/a
atom     x     y     z  Uiso
Si1    .25 .9726     0 .0097
Si2  .0103 .2486 .1682 .0110
O1   .9781 .0644 .2878 .0148
O2   .1678 .1708 .1002 .0172
O3   .8703 .2296 .0675 .0189