Gehlenite
Swainson I P, Dove M T, Schmahl W W, Putnis A
Physics and Chemistry of Minerals 19 (1992) 185-195
Neutron powder diffraction study of the akermanite-gehlenite
solid solution series
Sample: 25% Ak
_database_code_amcsd 0007695
7.7115 7.7115 5.0498 90 90 90 P-42_1m
atom     x     y     z   occ B(1,1) B(2,2) B(3,3)  B(1,2) B(1,3)  B(2,3)
Ca   .3377 .1623 .5100       .00811 .00081 .00696  .00395 .00000  .00000
MgT1     0     0     0   .21 .00361 .00036 .00627       0      0       0
AlT1     0     0     0   .79 .00361 .00036 .00627       0      0       0
AlT2 .1421 .3579 .9503  .375 .00155 .00015 .00323 -.00029 .00083  .00083
SiT2 .1421 .3579 .9503   .62 .00155 .00015 .00323 -.00029 .00083  .00083
O1      .5     0 .1793       .00580 .00056 .00480 -.00403      0       0
O2   .1430  .357 .2756       .00571 .00057 .00774       0 .00231  .00231
O3   .0861 .1717 .8030       .00714 .00036 .00921 -.00147 .00179 -.00154