Hydrogarnet
Schropfer L, Bartl H
European Journal of Mineralogy 5 (1993) 1133-1144
Oriented decomposition and reconstruction of hydrogarnet, Ca3.Al2.(OH)12
Sample: specimen C12A5.7H20, dehydration product of hydrogarnet after 3 weeks.
_database_code_amcsd 0006505
12.458 12.458 12.458 90 90 90 Ia-3d
atom      x     y     z  occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca        0   1/4   1/8             .025   .025   .029   .004      0      0
Al1       0     0     0             .030   .030   .030      0      0      0
Al2    -1/8     0   1/4 .283        .012   .032   .032      0      0      0
O    -.0295 .0522 .1406             .031   .029   .034   .002  -.002   .001
H     -.082  .048  .166 .800  .04