Anorthite
Wadoski-Romeijn E, Armbruster T
American Mineralogist 98 (2013) 1988-1997
Topotactic transformation and dehydration of the zeolite gismondine
to a novel Ca feldspar structure
Note: T = 350 C, Path 2, synthesised from gismondine
Locality: Rio Pian del Foco, Genova province, Italy
_database_code_amcsd 0020104
8.152 12.917 7.126 93.26 116.37 88.72 C-1
atom        x      y      z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
AlT1O  -.5099  .1673 -.2113      .0185  .0228   .019  .0127  .0004  .0082 -.0108
SiT1M   .0040  .3201 -.2343      .0166  .0199   .018  .0118 -.0049  .0074 -.0094
AlT2O  -.1872  .1137 -.3146      .0174  .0198   .013  .0170 -.0020  .0074 -.0112
SiT2M  -.1790 -.1172 -.3603      .0157  .0174   .013  .0150 -.0018  .0064 -.0087
Ca1     .2356 -.0197 -.1592 .729 .0429  .0242   .070   .038   .004   .017   .009
Ca2      .223  .0208  -.096 .271 .0429  .0242   .070   .038   .004   .017   .009
OA1    -.5206  .1296  .0245       .033   .038   .042   .011   .008   .006  -.013
OA2    -.0791 -.0074 -.2830       .026   .022   .024   .025  -.005   .006  -.015
OBO    -.3101  .1110 -.1739       .032   .026   .038   .034   .013   .019  -.010
OBM     .1825  .3567  -.260       .037   .037   .036   .048  -.020   .030  -.024
OCO    -.0215 -.2039 -.2780       .030   .032   .016   .043   .007   .019  -.006
OCM    -.0030  .1935 -.2124       .033
ODO    -.7077  .1075 -.3863       .028   .029   .027   .023  -.007   .010  -.015
ODM    -.3198  .1289 -.5826       .036   .040   .035   .016   .005  -.001  -.009