Prehnite
Detrie T A, Ross N L, Angel R J, Gatta G D
European Journal of Mineralogy 21 (2009) 561-570
Equation of state and structure of prehnite to 9.8 GPa
Locality: N'Chwaning II mine, Kuruman, South Africa
Note: P = 6.408 GPa
_database_code_amcsd 0007292
4.5236 5.3828 18.2482 90 90 90 Pncm
atom      x     y     z occ Uiso
Ca        0    .5 .0998     .012
Al        0     0     0     .009
SiT1     .5     0 .1188     .006
AlT2  .1974   .75   .25  .5  .05
SiT2  .1974   .75   .25  .5  .05
O1   -.7546 .1355 .0730     .009
O2   -.3738 .2199 .1704     .012
O3        0    .5  .233     .020
OH    -.215 .3045     0     .010