Amesite
Steadman R, Nuttall P M
Acta Crystallographica 15 (1962) 510-511
The crystal structure of amesite
Note: polytype 6R
Locality: Saranovskaye, USSR
_database_code_amcsd 0018742
5.31 5.31 42.1 90 90 120 R3
atom    x y    z  occ
MgY1 .333 0 .245 .667
AlY1 .333 0 .245 .333
MgY2 .667 0 .078 .666
AlY2 .667 0 .078 .334
SiX1    0 0 .514   .5
AlX1    0 0 .514   .5
SiX2    0 0 .847   .5
AlX2    0 0 .847   .5
SiX3    0 0 .347   .5
AlX3    0 0 .347   .5
SiX4    0 0 .681   .5
AlX4    0 0 .681   .5
O1      0 0 .554
O2      0 0 .887
O3      0 0 .387
O4      0 0 .721
O5   .550 0 .167
O6   .450 0    0
OH1  .667 0 .269
OH2  .333 0 .102
OH3     0 0 .221
OH4     0 0 .054