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 = 9.75 GPa
_database_code_amcsd 0007297
4.482 5.3201 18.161 90 90 90 Pncm
atom     x     y     z occ Uiso
Ca       0    .5 .1005     .010
Al       0     0     0     .011
SiT1    .5     0 .1199     .008
AlT2 .1981   .75   .25  .5 .007
SiT2 .1981   .75   .25  .5 .007
O1   -.757 .1362 .0722     .009
O2   -.375  .223 .1699     .014
O3       0    .5  .230     .053
OH   -.218  .309     0     .005