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: O% Ak
_database_code_amcsd 0007694
7.6850 7.6850 5.0636 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   .3389 .1611 .5104       .00812 .00812 .00575  .00275 -.00083 -.00083
AlT1     0     0     0       .00287 .00287 .00741       0       0       0
AlT2 .1434 .3556 .9540  .265 .00211 .00211 .00195 -.00033  .00045  .00045
SiT2 .1434 .3556 .9540 .2375 .00211 .00211 .00195 -.00033  .00045  .00045
O1      .5     0 .1765       .00516 .00516 .00409 -.00135       0       0
O2   .1427 .3573 .2835       .00575 .00575 .00653       0  .00167  .00167
O3   .0876 .1678 .8078       .00660 .00368 .00750 -.00114  .00237 -.00012