Slawsonite
Benna P, Nestola F, Ballaran T B, Balic-Zunic T, Lundegaard L F, Bruno E
American Mineralogist 92 (2007) 1190-1199
The high-pressure structural configurations of Ca0.2Sr0.8Al2Si2O8 feldspar:
The I-1-I2/c and I2/c-P2_1/c phase transitions
Sample: P = 0.0001 GPa
Locality: synthetic
_database_code_amcsd 0004407
8.370 12.967 14.262 90.58 115.55 90.44 I-1
atom      x     y     z occ Uiso
Ca0   .2691 .0001 .0669  .2 .015
Sr0   .2691 .0001 .0669  .8 .015
Caz   .2676 .0064 .5636  .2 .009
Srz   .2676 .0064 .5636  .8 .009
Si100 .0070 .1710 .1070     .008
Al10z .0023 .1759 .6156     .009
Al1m0 .0030 .8182 .1179     .009
Si1mz .0062 .8246 .6088     .011
Al200 .6920 .1197 .1675     .009
Si20z .6827 .1124 .6687     .012
Si2m0 .6839 .8847 .1745     .011
Al2mz .6933 .8792 .6722     .010
OA10  .0069 .1305 .9998     .015
OA1z  .9948 .1283 .4969     .015
OA20  .5885 .9997 .1420     .017
OA2z  .5875 .0002 .6414     .012
OB00  .8260 .1224 .1011     .014
OB0z  .8078 .1189 .6073     .015
OBm0  .8071 .8698 .1151     .019
OBmz  .8263 .8658 .6077     .015
OC00  .0162 .2951 .1241     .020
OC0z  .0188 .3081 .6372     .020
OCm0  .0137 .6886 .1248     .021
OCmz  .0094 .6979 .6119     .015
OD00  .1856 .1182 .1939     .016
OD0z  .1973 .1093 .7004     .020
ODm0  .1976 .8779 .2070     .012
ODmz  .1871 .8716 .6986     .018