Marialite
Antao S M, Hassan I
The Canadian Mineralogist 49 (2011) 581-586
Complete Al-Si order in scapolite Me37.5, ideally Ca3Na5[Al8Si16O48]Cl(CO3),
and implications for antiphase domain boundaries (APBs)
Locality: Lake Clear, Ontario, Canada
_database_code_amcsd 0018479
12.07899 12.07899 7.583467 90 90 90 *P4_2/n
.25 .25 .25
atom     x      y     z  occ  Uiso
ClA    .75    .75   .75 .550 .0571
SA     .75    .75   .75 .040 .0571
CA     .75    .75   .75 .409 .0571
FeM .61414 .53529 .7632 .003 .0201
SrM .61414 .53529 .7632 .004 .0201
CaM .61414 .53529 .7632 .338 .0201
NaM .61414 .53529 .7632 .547 .0201
KM  .61414 .53529 .7632 .040 .0201
Si1 .58983 .65957 .2485      .0077
Al2  .9101  .1659 .0494      .0089
Si3 .66266  .0855 .9616      .0089
O1   .7085  .5997 .2516      .0178
O2   .9437  .1251 .2641      .0178
O3   .6013  .1901 .0431      .0221
O4   .7945  .0989 .9658      .0182
O5   .5202  .6174 .0785      .0209
O6   .6245  .9784 .0725      .0234
O7C  .8452  .7950 .8002 .347 .0571