Palygorskite
Guistetto R, Chiari G
European Journal of Mineralogy 16 (2004) 521-532
Crystal structure refinement of palygorskite from neutron powder diffraction
Locality: Lorenzo Pech mine, near Ticul, on the way to Chapab, Chiapas, Mexico
Note: Occupancies created to match reported formula
_database_code_amcsd 0007075
12.672 17.875 5.236 90 90 90 Pbmn
atom     x     y    z occ Uiso
MgM2     0 .0868   .5 .54  .61
AlM2     0 .0868   .5 .39  .61
FeM2     0 .0868   .5 .06  .61
KM2      0 .0868   .5 .01  .61
MgM3     0  .177    0 .54  .61
AlM3     0  .177    0 .39  .61
FeM3     0  .177    0 .06  .61
KM3      0  .177    0 .01  .61
SiT1  .236 .0861 .780 .99 .057
AlT1  .236 .0861 .780 .01 .057
SiT2  .210 .1663 .312 .99 .057
AlT2  .210 .1663 .312 .01 .057
OH    .060     0 .277     .042
O1    .109  .104 .785     .042
O2    .082 .1715 .341     .042
Wat1  .079  .272 .878     .042
O3    .275     0 .827     .042
O4     .25   .25 .229     .042
O5    .284 .1372 .548     .042
O6    .214 .1056 .079     .042
OZW2  .064  .365 .216  .5 .008
DZW2' .081  .411  .26 .33 .008
DZW2' .915  .378  .98 .33 .008
DZW2" .140  .352  .26 .17 .008
DZW2" .959  .319  .85 .17 .008
OZW3  .148    .5 .333     .008
DZW3' .198 .4600 .258 .66 .008
DZW3" .185    .5 .492 .35 .008
DZW3" .208    .5  .21 .35 .008
OZW4     0  .487    0  .5 .008
DZW4' .043  .489 .122 .25 .008
DZW4' .013  .444  .07 .25 .008