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 = 8.207 GPa
_database_code_amcsd 0007294
4.5008 5.356 18.196 90 90 90 Pncm
atom      x     y     z occ Uiso
Ca        0    .5 .1002     .015
Al        0     0     0     .010
SiT1     .5     0 .1200     .011
AlT2  .2004   .75   .25  .5 .009
SiT2  .2004   .75   .25  .5 .009
O1   -.7551 .1351 .0716     .007
O2    -.377  .227 .1683     .021
O3        0    .5  .219     .027
OH    -.217  .304     0     .006